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From Swimming Skill to Water Competence: Towards a More Inclusive Drowning Prevention Future

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Abstract

Brenner, Moran, Stallman, Gilchrist and McVan, (2006) recommended that “swimming ability be promoted as a necessary component of water competence, but with the understanding that swimming ability alone is [often] not sufficient to prevent drowning” (pg. 116). Tradition and expert opinion are no longer enough. Science can now help us select essential competencies. What does research evidence show us about the protective value of specific individual personal competencies? Since the term “water competence’’ was coined by Langendorfer and Bruya (1995), and adapted for drowning prevention by Moran (2013), it has gained in use. It is indeed more inclusive than “swimming skill’’ alone. It re-emphasizes the need for a broad spectrum of physical aquatic competencies as well as the integration of cognitive and affective competencies. The purpose of this article is to a) define water competence, b) support each competence recommended as essential with examples of research evidence, and c) suggest areas requiring further research.
International Journal of Aquatic Research and Education
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From Swimming Skill to Water Competence:
Towards a More Inclusive Drowning Prevention
Future
Robert Keig Stallman
Norwegian School of Sports Science<9,/<>*5/31B+299-97
Kevin Moran Dr
&e University of Auckland579<+8+?-56+8.+-8C
Linda Quan
Sea'le Childrens Hospital638.+;?+8=/+H6/-236.</8=9<1
Stephen Langendorfer
Bowling Green State University - Main Campus6+81/8.9<0/<=417+36-97
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From Swimming Skill to Water Competence: Towards a More Inclusive
Drowning Prevention Future
Cover Page Footnote
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Abstract
Brenner, Moran, Stallman, Gilchrist and McVan, (2006) recommended that “swimming ability
be promoted as a necessary component of water competence, but with the understanding that
swimming ability alone is [often] not sufficient to prevent drowning” (p. 116). Tradition and
expert opinion are no longer enough. Science can now help us select essential competencies.
What does research evidence show us about the protective value of specific individual personal
competencies? Since the term “water competence’’ was coined by Langendorfer and Bruya
(1995) and adapted for drowning prevention by Moran (2013), it has gained in use and
acceptance. As a construct, it is indeed more inclusive than “swimming skill’’ alone for
addressing drowning prevention. Our proposed taxonomy of water competencies re-emphasizes
the need for a broad spectrum of physical aquatic competencies as well as the integration of
cognitive and affective competencies. The purpose of this review article is to a) identify all the
key elements of water competence, b) support each recommended type of water competence
with examples of research evidence, and c) suggest areas requiring further research.
Keywords: water competence, swimming skill, drowning prevention, water safety
Drowning is a multifaceted and complex phenomenon that has, at its heart, the way in
which humans interact with their aquatic environment (Moran, 2006). A multitude of possible
causes of drowning necessitate a multitude of possible interventions to prevent their occurrence.
In high income countries (HICs), many drownings occur in relation to intentional immersion and
are often associated with recreational pursuits. Others are the consequence of unintentional
immersion and can occur in a variety of settings such as the home, on farms, or construction sites
and under a variety of climatic and weather conditions such as heat and cold (ice), storm and
flood. In low and middle income countries (LMICs), most drownings occur in connection with
domestic life, occupational pursuits, travel, and natural disasters.
Conventional wisdom has suggested that teaching people to cope with the risk of
drowning through the acquisition of swimming skills is one of the more important drowning
prevention interventions. While such axiomatic wisdom has been built on a tradition of teaching
swimming and lifesaving skills, this approach has been primarily underpinned by anecdotal
evidence and expert opinion. More recently, debate among drowning prevention experts has
suggested that further research needs to include water safety knowledge and attitudes along with
aquatic motor skills. In 2007, the International Lifesaving Federation (ILS) adopted a Position
Statement for Swimming and Water Safety Education (ILS, 2007) which noted that evidence is
rapidly accumulating that a basic level of water safety knowledge, coupled with a basic level of
swimming skill, is sufficient to prevent most drowning episodes.
A decade ago, Brenner and colleagues (Brenner, Moran, Stallman, Gilchrist, & McVan,
2006) recommended that “the concept of swimming ability be replaced by the more
encompassing notion of water competence with regards to drowning prevention” (p. 116). In
LMICs where exposure to water abounds during daily living activities and therefore the risk of
unintentional immersion is omnipresent, acquisition of survival swimming and associated water
competencies (i.e., 18 competencies) has reduced fatal drowning among young children in a
large cohort trial in rural Bangladesh (Linnan, Rahman, Rahman, Scarr & Cox, 2011). A case-
control study in rural China has found that swim instruction provided a protective effect on
drowning among children aged 14 years (Yang, Nong, Li, Feng, & Lo, 2007). Supporting
evidence also has been reported in high income countries (HICs). A case-control study in the
U.S. found a positive association between swimming lessons and lower drowning risk in children
less than five years of age (Brenner, Taneja, Haynie, Trumble, Qian, Klinger et al., 2009).
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Such studies support the need for water safety education; yet deeper understanding of the
protective effects of the water competencies taught within these programs has continued to be
elusive. Consensus on which water competencies to include has yet to be achieved. Considerable
variation exists among current water safety programs even around which physical water
competences should be required to swim in deep water (Quan, Ramos, Harvey, Kublik,
Langendorfer….Wernicki, 2015). The primary aims of this paper are to describe and provide
research evidence regarding what physical, cognitive, and affective competencies contribute to
a person’s water competence and reduce the risk of drowning. For the purpose of this study,
water competence is defined here as the sum of all personal aquatic movements that help
prevent drowning as well as the associated water safety knowledge, attitudes, and behaviors that
facilitate safety in, on, and around water (Moran, 2013, p. 4). Adoption of this more
encompassing construct will allow us to focus on what should be sequentially and
developmentally taught. We therefore specifically have addressed the rationale justifying the
inclusion of selected water competencies as well as have examined the research evidence for
inclusion of each competence in our proposed taxonomy (see Table 1). By providing the
rationale and evidence, we hope that weaknesses in the evidence for the proposed water
competencies will be exposed and stimulate additional systematic research.
Method
Discussions regarding the use and definition of “water competence” were launched in Da Nang
at the World Conference on Drowning Prevention (WCDP 2011). An international Working
Group was assembled and planned and offered a workshop during the subsequent WCDP held
in Potsdam in 2013. The ongoing global input has allowed the water competence construct to
evolve over time. Members of the Working Group liaised with members of the Drowning
Commission of International Life Saving Federation (ILSF). A detailed report on water
competence and drowning prevention is planned for public dissemination in the near future.
In the first round of discussions, Working Group members identified water competencies
currently promoted in the curricula of high profile international and national organizations,
scholarly journal articles, and organization position statements. Moran’s (2013) adaptation of
the original Langendorfer & Bruya (1995) meaning for use in a drowning prevention context
served as the foundation for this work. The primary goal was to provide agencies involved in
water safety education, program planners, and individual instructors with a recommended
taxonomy of water competencies which research evidence has shown to offer protective value
in reducing the risk of drowning.
A literature search was conducted with the assistance of the University of Washington
Library to identify evidence that supported or refuted the inclusion of water competence
elements identified in the initial discussion. An expanded list including potential competencies
to be examined were used as key words in searches. Studies were identified by searching
electronic databases using search strategies developed and executed by a medical librarian.
Searches were performed in February and March 2015 in the following databases on the Ovid
platform: Medline and PsycInfo; on the EBSCOhost platform: SPORTDiscus; elsewhere:
EMBASE. Retrieval was limited to human studies written in English from 1970 to March 2015.
In all databases, appropriate index terminology (Medical Subject Headings, Thesaurus of
Psychological Index Terms, thesaurus of SPORTDiscus descriptors and Emtree headings) were
used, along with text words. Concepts searched were swimming, with many terms related to
specific aspects of swimming or the environment of water, such as stroking, respiration, floating,
underwater, deep water, fresh water, swimming pools, and lifejackets. Other terms related to
competence or survival, such as psychomotor performance, aquatic motor skills, cognition,
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bystander, response time, lifeguards, and rescue. In a subsequent round, each contributing
author added references known to them or discovered in their own search. Adjustments were
then made by adding to or subtracting from the original list of competencies, as supporting
evidence was or was not found. A second formal literature search was conducted in May, 2016
that identified several new studies of relevance. Finally, expert opinion was used to translate this
evidence to a pragmatic rationale for support of each water competency.
In the subsequent pages, we present each of the water competencies with the rationale
developed by the collective working group. We then examined the evidence gathered during the
review process, summarized the evidence basis for each competency, and made
recommendations for future practice and research.
Results
Table 1 shows the fifteen water competencies identified. Each of these competencies is closely
interwoven with one or more of the others. The most common drowning scenarios place demands
on several of these essential competencies, either simultaneously or serially.
Table 1. Proposed water competencies related to drowning prevention
Water Competencies
1
Safe entry competence
a) Entry into water
b) Surface and level off
9
2
Breath control competence
Integrated and effective breathing
10
3
Stationary surface competence
a) Buoyancy control: floating
b) Treading water
11
4
Water orientation competence
a) Roll from front to back, back to front
b) Turn, L & R, on front & back
12
5
Propulsion competence
a) Swim on front
b) Swim on back and/or side
13
6
Underwater competence
a) Surface dive
b) Underwater swimming
14
7
Safe exit competence
15
8
Personal flotation device (PFD/lifejacket)
competence
1. Safe Entry Competence
1a. Entry into water. The degree of risk when entering the water varies according to
the individual, the task, and the environment (Langendorfer, 2010). Unintentional falls into
open water are a frequent cause of drowning. Sudden immersion places demands on breath
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holding, reorientation, regaining the surface, regaining the breath, stopping to float and rest
and/or leveling off in preparation for moving in a certain direction. Where entry into water is
intentional, drowning or injury can also occur because of poor technique, failure to check
depth, or underwater hazards. Risk is exacerbated when the entry involves great height above
water and therefore greater impact forces on entry.
Spinal cord injury (SCI) is often associated with recreational diving, the act of entering
the water head first during recreational activity and hitting the bottom or an object (Blanksby,
Wearne, Elliott, & Blitvich, 1997). Diving has been identified as the most frequent sporting
activity related to SCI (Hartung, Goebert, Taniguchi, & Okamoto, 1990; Katoh, Shingu, Ikata,
& Iwatsubo, 1996; Schmitt & Gerner, 2001). While the numbers of hospital admissions are
relatively few, the financial cost to society of SCI is high given that those most frequently
affected are healthy young persons under twenty-five years of age (DeVivo & Sekar, 1997).
1b. Surface and level off. Surfacing and leveling off are intimately related to safe entry
itself. The manner of the entry and its consequences influence the surfacing process and its
success or failure (Junge, Blixt, & Stallman, 2010). Breath holding and buoyancy control
(among other competencies) are challenged while regaining the surface (Oliveira, Aranha,
Resende, Cardoso, Pimenta, & Garrido, 2013). Surfacing in itself is a specific skill and
includes the above, plus some form of propulsion to the surface. The depth of submersion, the
consequences of impact, and the need to orient oneself and hold the breath will all affect the
surfacing process. Upon breaking the surface of the water, leveling off involves taking the
initial breaths and then may require shifting the center of mass forward or backward to reduce
body angle. A few propulsive arm strokes or leg kicks may assist this process. Managing this
process in an effective fashion interact with multiple other competences. Immediately upon
surfacing, orientation to possible hazards, to the presence of waves, and to the direction of
safety, must be successfully executed. In cold water, the first seconds following immersion and
resurfacing, may induce a cold shock response (CSR) which is an immediate life-threatening
condition associated with respiratory impairment (Golden & Tipton, 2002).
Research evidence. In a study of children (N = 70) who had swum 25m and been
declared ‘swimmers,one quarter (26%) were unable to enter deep water by either a jump or
dive (Junge, Blixt, & Stallman, 2010). Of those who attempted to enter by jumping or diving
and failed to do so (18 = 26%), the discomfort of resurfacing, regaining their breath, and
regaining orientation, forced over one-third (7/18 = 39%)) to abandon the trial. Working with
children (N = 22) who had mastered eight skills considered essential to drowning prevention,
Oliveira and colleagues (2013) assessed these children’s capacity to cope with an unexpected
capsize of an inflatable boat (involuntary entry). Video analysis of the simulated capsize
showed that one third (32%) of the children were observed to be ‘at risk’. Stallman and
colleagues (2008) found that drowning survivors reported that the challenge of involuntary
entry and resurfacing were life threatening.
Analysis of unsafe techniques have resulted in clear recommendations with regard to
head first entry (Blitvich, Mc Elroy, Blanksby, & Douglas, 1999). Risk factors contributing to
recreational diving injury have been well reported with males aged 1529 years, especially
when consuming alcohol (Aito, D’Andrea, & Werhagen, 2005; Blitvich, Mc Elroy, Blanksby,
& Douglas, 1999; Herman & Sonntag, 1991). In open water settings, entering the water from a
pier or dock, diving headfirst, not having checked water depth, and being unfamiliar with
location have also been identified as risk factors (Branche, Sniezek, Sattin, & Mirkin, 1991).
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Other studies have shown that young and adult males are most likely to engage in high risk
entries from height (Moran, 2014c) and adopt unsafe entry behaviors (Moran, 2008; 2011b).
Recommendations. Further research is required on the teaching of safe entry skills,
what is currently taught, and the associated knowledge, attitudes, and behaviors especially of
high risk groups such as male youth.
On the basis of the research reported above, the following recommendations are made:
1. Safe voluntary entry technique for feet and head first entry should be considered fundamental
competencies taught in all aquatics and water safety programs,
2. Simulating unintentional entry experiences should be taught, and
3. Where developmentally appropriate, entry and resurfacing should be combined in creative
ways, challenging the learners’ capability to cope with realistic emergency situations.
2. Breath Control Competence
Integrated and Effective Breathing. Drowning is the process of experiencing
respiratory impairment from submersion/immersion in liquid (van Beeck, Branche, Szpilman,
Modell & Bierens, 2005). This definition was formally adopted by the international drowning
prevention community at the World Congress on Drowning, 2002. Lanoue (1963) reminded us
that people don’t drown because they can’t swim, they drown because they can’t breathe. The
obvious cause of any drowning is thus failure to breathe at need, with eventual asphyxiation,
with or without aspiration.
The American Red Cross has, for many years, suggested that breath control is the key to
learning to swim (American Red Cross, 1961; 2015). It is usually considered to be the most
important of all personal physical survival competencies and of the foundational skills for further
learning. It is therefore, most commonly placed first in any teaching progression (American Red
Cross, 1961; 2015; Junge et al., 2010; Langendorfer & Bruya, 1995; Stallman, Junge, & Blixt,
2008). Effective breathing is the key to economic movement (Stallman et al., 2008).
In the aquatic activity context, we define effective breathing as 1) a comfortable exchange
of air, when needed or desired and adding no extraneous energy expenditure, 2) a spatially and
temporally integrated breathing movement allowing inhalation and exhalation without
interfering with other movements (e.g., that of the limbs), 3) a technique which in no way
compromises optimal body position, and 4) a technique which meets the needs of the task at
hand, the person involved, and the environment.
Research evidence. In a study of children who had previously swum 25m, Junge and
colleagues (2010) reported that 94% were unable to stop and rest because of insufficient breath
control and buoyancy control. Any attempt to stop and rest required more energy than continuing
to swim. In a pilot to this study, children able to swim only 10-15 m but who did so comfortably
and were skilled at floating in deep water, were able to swim 10m, rest, then 10 more and rest
and even 10 more, a total of 30m (Junge, 1984). They out-performed those who could swim 25m
only with great difficulty and who were unable to stop and rest.
Common during the learning process is swimming with the head up, having not learned
optimal breathing. Head up swimming is a survival skill in its own right. The water competent
person can do both. Zamparo and Falco (2010) reported greater energy expenditure and reduced
arm efficiency in head up swimming compared with normal front crawl among female water
polo players (N = 21). Working with physical education students (N = 21), Stallman and
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colleagues (2010) showed increased heart rate, oxygen uptake, and lactate levels when
swimming breaststroke with the head continually above the surface compared to swimming with
a more efficient breathing pattern involving face submersion. Importantly, in the context of
survival, the latter study also showed that swimming with the head up reduced simulated survival
time (swimming to exhaustion). Kjendlie and colleagues (Kjendlie, Pedersen, Thoresen, Setlo,
Moran, & Stallman, 2013) showed that breathing problems escalate in rough water. Drowning
survivors named failing breath control as the primary threat to their life (Stallman et al., 2008).
Oliveira and colleagues (Oliveira et al., 2013) observed children who had mastered essential
swimming skills during an unexpected (arranged) capsize of an RIB. Video analysis showed that
they had difficulty in regaining breath control.
Elevated respiratory frequency and possible hyperventilation is an immediate reaction to
cold water immersion [CWI] and exacerbates the risk of drowning (Golden & Tipton, 2002;
Barwood, Corbett, Green, Smith, Tomlin, Wier-Blankenstein, & Tipton, 2013). Button and
colleagues (Button, Croft, Cotter, Graham, & Lucas, 2015) showed that both the physiological
and behavioral reaction to CWI did not vary appreciably between skilled and unskilled
swimmers. Voluntary breath control as a strategy to prevent or alleviate the cold shock response
[CSR] improved cerebral blood flow (Mantoni, Rasmussen, Belhage, & Pott, 2008; Croft,
Button, Hodge, Lucas, Barwood, & Cotter, 2013). Croft and colleagues (2013) also reported that
advance information on cold water response and training prior to CWI can improve breath
control and help the return to relatively normal breathing. Barwood and collaborators (Barwood,
Dalzell, Datta Avijit, Thelwell, & Tipton, 2006) showed that breath holding improves with
psychological skills training and habituation. They later demonstrated that breath holding
improves with psychological skills training alone (Barwood, Datta Avijit, Thelwell, & Tipton,
2007). Recent work by Bird and colleagues suggests that habituation in cold water is sustained
for several months after training among young children (Bird, House, & Tipton, 2015a, 2015b).
Barwood and colleagues (Barwood, Bates, Long, & Tipton, 2011) reported that floating first to
help regain breath control is in fact aided because buoyancy is improved by air trapped in
clothing.
Recommendations. Future research should include: a) mapping the extent to which
effective breathing is or is not emphasized in teaching, b) exploring the consequences of added
attention to or lack of effective breathing during teaching/learning, c) exploring possible stroke
modifications to enhance head up swimming, and d) exploring the nuances of effective breathing
in open water, surf, when clothed, or in other task/environmental situations.
On the basis of the research reported above, the following recommendations are made:
1. Effective breathing is the foundation upon which economic movement (including
movements which can contribute to drowning prevention) can be learned and performed,
2. Effective breathing should be promoted in all forms of moving and stationary water
competences,
3. Where developmentally appropriate, fatigue-inducing activities should be experienced in
order to challenge maintenance of effective breathing in simulated survival activities, and
4. Where developmentally appropriate, effective breathing should be developed in stressful
situations such as simulated rough, cold, or open water.
3. Stationary Surface Competence
3a. Buoyancy control: Floating. Closely related to breath control, buoyancy control is
a key element in the teaching of water competence. It is widely accepted as foundational for
water competency (American Red Cross, 2015; Langendorfer & Bruya, 1995; Stallman et al.,
2008; 2010). Human flotation is dependent on the relationship between the body’s mass and
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volume, i.e. density. The volume of the thorax increases and decreases as we breathe, changing
body density. For many, positive buoyancy can be maintained by ínflating dormant alveoli space
and increasing respiration rate via breath control. For the beginner, the capacity to inflate and
maintain the expanded lung volumes is greatly assisted through relaxation and familiarity with
the stationary actvity. In the learning process, as one gains confidence, there may be no greater
a confidence than being able to float.
With a full inspiration, prepubescent children, women, and most men have the anatomical
capacity to float. The true non-floater is rare (< 5/100) and, with maximal lung ventilation, even
these have some buoyancy, albeit slightly less than the gravitation on their mass (Stallman,
1997). For the non-floater, the capacity to maintain the airway while stationary without some
limb motion is compromised.
3b. Treading water. Treading water is usually used when wishing to remain stationary
with the head above the surface. It is one of the most versatile and essential of physical water
competencies. Treading water can be an alternative method of resting, or stopping to seek or
wait for help. When performing a task with the hands, treading allows one to stay at the surface
using legs only. In cold water, keeping the head above the surface not only maintains visibility,
it also reduces heat loss (Hayward, Collis, & Eckerman, 1973; Hayward, Eckerson, & Collis,
1975).
Saving energy by moving less or remaining stationary is an issue when choosing a
strategy for short vs long term exposure. Exercise produces heat, normally beneficial but also
enhances heat loss (Golden & Tipton, 2002). For long term exposure, saving energy is critical.
Total energy available is fixed. Increasing heat loss will hasten the depletion of energy and the
onset of hypothermia. Short term exposure may require a different strategy, i.e. intentionally
producing heat (swimming). Exposure of unknown duration must be treated as long term and
may require alternative motionless floating.
Research evidence. Drowning survivors named being unable to float, a threat to their
life, (Stallman et al., 2008). Junge and colleagues (2010) found that most children (94%, n=70)
who had swum 25m and been declared ‘swimmers’ were unable to stop and float. In the initial
Can You Swim? study of university students (N = 373), most (76%) could comfortably swim
more than 300 m nonstop, but only 40% could float for 15 minutes and more than one third
(35%) could not stay afloat for more than 2 minutes (Moran et al, 2012). Kjendlie and colleagues
found a 24% decrement in floating performance among 11 year old children when introducing
waves (Kjendlie et al., 2013). On the basis of this evidence, swimming competency alone does
not appear to guarantee floating competency (Moran et al., 2012, Junge et al., 2010).
Graham (1977) and Fritzvold (1986) showed that floating required less energy than
treading water. Wade and Veghte (1977) found that swimming increased heat loss over still
immersion. Duffin and colleagues (1975) found that, when comparing water of 110C to 280C,
the rate of respiration could be multiplied 4-5 times. Hayward and colleagues (1973) identified
the areas of greatest heat loss - the head and throat, the axilla and the groin. The H.E.L.P.
technique (adopting a fetal position, when wearing a PFD) reduces the surface area of exposure
to cold water and covers areas of greatest heat loss (Hayward et al., 1975). This technique
reduced heat loss by 69% while treading water caused more heat loss than floating (with PFD).
Gagnon and colleagues (2013) found that while there was great heat loss from the head, there
was no difference between face in, back of head in or whole head in the water. This suggests that
having chosen to float and wait for help, one could choose back or front survival float. Kjendlie
and colleagues (2013) found that children’s floating skills were negatively affected by waves.
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Moran (2015) reported that clothing did not effect floating efficency among physical education
students (N = 37) during a 5-minute flotation test.
Recommendations. Future research should include further exploration of the energy
cost, heat loss, cerebral blood flow parameters, behavioural characteristics, etc. - comparing
treading water, floating and swimming, among persons of various degrees of competence, in
various states of fatigue, and in variable open and closed environments.
Based on the available evidence, we recommend that:
1. Stationary surface competencies be developed at earliest stages of competency development
and progressively made more challenging,
2. Both floating and treading water are taught and treated as equally important surface
competencies,
3. Ensure that, where developmentally appropriate, the competencies are practised in closed
and open water, and
4. Where developmentally appropriate, stationary surface competencies should be developed
in stressful situations such as simulated rough water or open water
4. Water Orientation Competencies
Changing position by either rolling from one position to another, or changing direction by
turning, are classified here as skills of orientation. In a drowning situation, one must be able to
change position in the water as the need arises. Constantly changing conditions are a
characteristic of open water environments where most drowning occurs. The dynamic nature of
open water (with frequently changing influences such as wind, waves, tides, and currents)
demand versatility so as to accommodate change and re-orientate the body to cope with the
hazards.
4a. Roll from front to back and back to front. Rolling from front to back and back to
front is included in almost all organizational teaching progressions (ARC, 1961; 2015; Junge,
1984; 2010; Stallman, 2008). Each of these positions has advantages which may make their use
situationally advantageous. Floating or swimming on the back allows easier breathing. Floating
or swimming on the front allows better visibility. The water competent person is comfortable in
all of these positions and easily changes from one to the other.
4b. Turn Left & Right, on Front & Back. Changing direction when in the water is
required to negotiate hazards, avoid dangers, and return to safety. In open water, negotiating
breaking waves, keeping clear of obstacles (such as rocks, reefs, sandbars), avoiding debris, and
moving out of rip or river currents, all require movement agility that demands more than the
capacity for straight line swimming. After a fall into deep water, one may not only find
themselves in virtually any position, but also, facing any direction, including away from safety.
With toddlers, Asher and colleagues (Asher, Rivara, Felix, Vance, & Dunne, 1995) found that
turning back toward the point of unintentional entry was central in their attempts to return to
safety. Turning as a skill in itself would allow a reasonably quick reversal of direction and back
toward the point of entry by the shortest possible route. If this is not a possible or a safe place to
exit, another turn might be required to move in the direction of a safe exit or a place where one
can be rescued.
Research evidence. Drowning survivors revealed that failing to orient oneself in either
of these ways, became life threatening (Stallman et al., 2008). Junge and colleagues (2010)
showed that among children who had previously swum 25 m, after swimming 12.5 m on the
front, 10% were unable to turn, changing direction 1800 and 43% were unable to roll from front
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to back to continue swimming on the back or to stop and rest. Asher and colleagues (1995) found
that after entry, most toddlers found themselves in a semi vertical position facing forward. They
then needed to roll over to their back for ease of breathing and to turn towards the point of entry.
A study of 5-year-old children (N = 22) showed that the random positions the children found
themselves in after falling from a boat demanded that they needed to be able to both roll and turn
(Oliveira et al., 2013). Both rolling over and turning were negatively influenced by clothing
(Laakso, Horneman, Grimstad, & Stallman, 2014). One early British study reported that nearly
half of all drownings in the UK happened within 2-3 meters of safety and over 60% within 3-4
m (Home Office, 1977). Golden and Tipton (2002) surmised that the shock reaction to cold
incapacitates many so that they are unable even to turn and swim this short distance. Even
without cold shock, poor swimmers might fail to turn, as shown by Junge and colleagues (2010).
Recommendations. Further research should include a) exploration of the role and
assessment of rolling and turning in relation to swimming and floating competency, b) the extent
to which these orientation skills are affected by clothing, rough water, and cold water, and c) the
effects of habituation on these rotational skills and how they might transfer from a calm, warm
water learning situation to an open, cold water, high risk situation.
Based on the available evidence, we recommend that:
1. Changing body position and direction must be prioritized in all water safety educational
programs. When developmentally appropriate, they should be combined,
2. All orientation competencies can easily be creatively incorporated into games and play
activities,
3. Ensure that, where developmentally appropriate, the competencies are practised in closed
and open water, and
4. Where developmentally appropriate, swimmers should perform/ develop orientation
competencies in stressful situations such as simulated rough water or open water
5. Swimming Competencies
The teaching of swimming has long been advocated as a way of promoting water safety and
reducing drowning risk (e.g., Swimming and Water Safety Position Statement, ILS, 2007, 2012).
Until recently, the protective role of swimming skill in the prevention of drowning has not been
clearly understood (Moran, Quan, Franklin, & Bennett, 2011). A lack of consensus as to what
swimming competency is and the associated difficulties of its’ practical assessment have
exacerbated this lack of understanding. Recent studies have, however, provided some evidence
of the value of swimming competency in preventing drowning among children (for example,
Brenner et al., 2009; Linnan et al., 2011; Rahman, 2009; Yang et al., 2007).
5a. Swim on the front. Being able to move through the water on the front using a variety
of swimming techniques offers several potential protective benefits. Swimming with the head up
facing forward (for example, breaststroke or head up swimming in front crawl) allows for good
visibility of surrounding hazards and clear sight of a safe destination. Using the front crawl stroke
offers speed when rapid movement is required to get to safety quickly over a short distance, or
to avoid hazards. Using resting strokes such as breaststroke or sidestroke offers endurance
capabilities when time is a critical factor and maneuverability when having to negotiate
obstacles.
Swimming on the front may require the face to be in the water or out of the water but the
selection of which may be situationally dependent rather than a matter of preference or choice.
The water competent person can do both. In a developmentally-oriented program,
individualization leads to multiple solutions (Langendorfer & Bruya, 1995). In a drowning
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prevention context, for purposes of assessment Junge, (1984), Stallman and colleagues (1986,
2010), Langendorfer and Bruya, (1995), Junge and colleagues (2010), and Mercado and
colleagues (2016) intentionally do not identify any specific style, considering economy of
movement more important than style itself, and allowing the learner to self-select.
5b. Swim on the back/side. Drowning survivors related that failure to swim and float on
the back contributed to their swimming failure and the need to be rescued (Stallman, 2008).
Being able to swim on the back/side permits the possibilities of easier breathing and forward
propulsion but offers poor forward visibility. In most situations, swimming on the back/side
allows easier breathing. It may be beneficially used in conjunction with forward facing
swimming techniques to overcome the lack of vision. The water competent person is proficient
on both front, back and side, thus having a choice regarding preferred body position in which to
swim. A study by Junge and colleagues (Junge, et al., 2010) showed that, in a program which
placed lesser value on swimming on the back, children who had swum 25m on the front, half
(49%) were unable to swim 12.5m on the back. This suggested that learning to swim on the front
does not necessarily transfer to competence in swimming on the back.
Research evidence. Acquisition of survival swimming and associated water
competencies (18 competencies) reduced fatal drowning among young children in a large cohort
trial in rural Bangladesh (Linnan, Rahman, Rahman, Scarr, & Cox, 2011). A case-control study
of swim instruction in rural China also found a protective effect on drowning among children
aged 14 years (Yang, Nong, Li, Feng, & Lo, 2007). Supporting evidence has also been reported
in high income countries (HICs). A case-control study in the U.S. found a positive association
between swimming skill and drowning prevention in children less than five years of age (Brenner
et al., 2009).
Kjendlie and colleagues (Kjendlie, Pedersen, Stallman, & Olstad, in press) found that
introducing simulated waves (in a wave pool) caused a mean decrement of 3% - 7% (moderate
[ca 20cm] and larger [ca 40cm], respectively) in maximum sprint time for young swimmers. The
performance order was front crawl as the fastest (therefore most efficient) followed by front
crawl with head up, then back crawl and finally breaststroke. The decrement when introducing
waves was approximately the same for all strokes. Back crawl was less efficient than front crawl
(head up and down) but suffered no greater decrement when waves were introduced. Choi and
colleagues (Choi, Kurokawa, Ebisu, Kikkawa, Shiokawa, & Yamasaki, 2000) focused on
swimming with clothes but examined three escalating velocities and three styles (front crawl,
breaststroke and elementary back). Elementary back stroke was as expected, less efficient than
crawl or breaststroke (with and without clothes). As expected, energy cost increased
exponentially with increased velocity. For our purposes the most interesting was that as velocity
decreased, elementary backstroke compared more favorably with the other strokes. Fujimoto and
colleagues (Fujimoto, Inokuchi, & Ishida, 2001) directly compared crawl and elementary
backstroke. The subjects were asked to swim at the same level of perceived exertion for both
strokes. The elementary backstroke recorded lower heart rate and lactate levels than the crawl
although taking a longer time to swim 200m. This suggested that using the elementary
backstroke may be a viable strategy for some in an unexpected emergency.
Recommendations. Further research on the preventive effect of swimming competency
on drowning is required especially for older children, youth, and adults. Future research should
explore comparisons between front and back swimming, the influence of one’s personal
competence profile on selection of strategic options, and the need to adopt different aquatic
propulsion strategies in different environments.
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Based on the available evidence, we recommend that:
1. Swimming on the back and front are equally important and require equal attention in the
teaching process while swimming on the side lacks evidence of efficacy,
2. Ensure that, where developmentally appropriate, the competencies are practised in closed
and open water environments, and
3. Where developmentally appropriate, swimming competencies should be practiced in
stressful situations such as simulated rough or open water.
6. Underwater Competencies
In some circumstances, swimming underwater to negotiate hazards may be a competence
required to avoid drowning. Underwater swimming is often initiated by a surface dive.
Recreational pursuits often involve persons swimming in an area occupied by other activities
(surfing, kite skiing/flying, water skiing, paddling, etc.). Swimmers/bathers may naively select
an inappropriate place to swim and be exposed to both domestic, industrial and recreational
hazards. Sudden capsize in sailing, paddling, and boating activities may also require underwater
competency to negotiate confined spaces (such as cabins) and entrapment hazards (such as sails
and shrouds) in order to return to the surface. Transportation accidents often place many people
and hazardous objects suddenly in the water in a chaotic situation - consider the Titanic and
Estonia episodes (Golden & Tipton, 2002).
6a. Surface dive. Experiencing and coping with depth, pressure, and reduced visibility
are considered an essential part of water competence (Stallman et al., 2008) and should be
experienced early in the learning process (Langendorfer & Bruya, 1995). A quick manoeuver by
surface diving to avoid an oncoming hazard, may be life preserving. Surface dives maybe
performed headfirst where visibility is good and no underwater hazards exist, alternatively feet
first dives may be performed where visibility is poor and underwater hazards may be present.
6b. Underwater swimming. Swimming underwater requires both breath control and
buoyancy control, essential foundational water competencies. Swimming underwater may
include a variety of techniques with variations of underwater breaststroke common. Adding
dolphin or crawl kicks after each breaststroke kick is a viable alternative especially where the
breaststroke kick is not efficient. A diagonal (crawl like) arm stroke is recommended in situations
of poor visibility, with one arm always forward protecting the head. In addition to face down
underwater swimming (prone body position), underwater swimming with the face up (supine
body position) is also a useful competency when locating the water surface is required.
Research evidence. Drowning survivors named failure to dive or to swim underwater as
life threatening (Stallman et al., 2008). Junge and colleagues (2010) showed that some children
(10%) who had previously swum 25 m continuously, were uncomfortable underwater after entry,
and that this caused them to abort an attempt to swim 12.5 m. Moran and colleagues (2012)
showed that many young adults overestimate their ability to surface dive and to swim
underwater. Witt and colleagues (2011) found that when swimming faster with fins, objects
seemed closer and larger than when swimming slower without fins.
In North America, 5-11% of all drownings occur in submerged vehicles (Giesbrecht &
McDonald, 2011). Giesbrecht and McDonald (2010) further identified the phases of the
submersion of a passenger car as a) floating, b) sinking and c) submerged. The floating phase
was approximately one minute in a reasonably air-tight vehicle. In a later review, McDonald
and Giesbrecht (2013a) recommended a survival strategy of: 1) release seat belts, 2) open
windows, 3) release children, 4) children out first, and 5) adults out. In a difficult trial escape,
three adult men and one child mannequin all escaped from a single window in 51 sec. In another
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study, the same authors found little difference in various forms of thermal protective flotation
clothing regarding impedance of exit from a submerged simulator (McDonald & Giesbrecht,
2013b). Gagnon and colleagues (Gagnon, McDonald, Pretorius, & Giesbrecht, 2012; Gagnon,
Pretorius, McDonald, Kenny, & Giesbrecht, 2013) found little difference in exit, escape, and
horizontal underwater swim distance when using various thermal flotation clothing
combinations while an inflatable vest did impede exit and underwater swim distance.
As early as 1961, Craig identified the risk of pre-submersion hyperventilation (Craig,
1961; 1976). In a recent and comprehensive review, Pearn, Franklin, and Peden (2015) defined
“hypoxic blackout” as “loss of consciousness in the underwater swimmer or diver during an
apnea submersion preceded by hyperventilation, where alternative causes of unconsciousness
have been excluded” (p.343). They described the syndrome as having a high fatality rate but
preventable. They emphasized the risk and the lack of measures of predictability and
recommended that all swimmers and divers be educated about the risk of pre-submersion
hyperventilation. Lindholm and Gennser (2004) also warned of the increasing popularity of
breath-hold diving as an adventure/risk sport. Following a systematic review of hypoxic
underwater blackout, the American Red Cross has recommended against teaching
hyperventilation to swimmers and warning instructors and lifeguards about the dangers
(American Red Cross Manual, 2015, p. 39).
Recommendations. Though the need to include surface diving and swimming
underwater in water competence appears axiomatic, little research has been conducted on their
value in drowning prevention education. Further research should include a) comparative analysis
of various surface diving techniques relative to starting point, speed of execution, depth to be
achieved, etc. b) comparative analysis of various techniques for underwater swimming relative
to mechanical efficiency and physiological effects and demand, c) exploring the effects of
clothing, rough water, and cold water on surface diving and under water swimming.
Based on the available evidence, we recommend that:
1. Underwater competencies be introduced early in the teaching process and, where
developmentally appropriate, exposure to depth be increased gradually,
2. All swimmers and divers should be educated regarding the dangers of pre-dive
hyperventilation and hypoxic blackout, that is, it must be included in all water competency
educational programs. Male children and youth should be specifically targeted, and
3. Where developmentally appropriate, coping with underwater hazards in simulated open
water activities be encouraged and experienced.
7. Safe Exit Competence
Reasons for drowning are most commonly associated with failure to stay afloat or swim to safety
yet some evidence suggests that victims may also drown because they are unable to exit the water
upon reaching the water’s edge (Moran, 2014b). This has aptly been referred to as ‘the exit
problem’ (Connelly, 2014). It appears to be more prevalent when the immersion is sudden,
unintentional, and occurs in an open water setting. A problem exists in quantifying the extent of
this phenomenon since most drowning incidents of this nature are not witnessed and such details
are thus not reported. In spite of the likelihood that some drowning victims die because they
cannot exit the water once reaching the water’s edge, little is known about the real and perceived
capacity of potential victims to extricate themselves from the water in an emergency.
In New Zealand, non-recreational immersion incidents, where the victim had no intention
of being in the water, accounted for one quarter (25%) of all drowning fatalities in the five year
period from 2008-2012 (Water Safety New Zealand, 2013). In Australia, in the year ending 30th
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June, 2013, one fifth (18%) of all drowning fatalities were attributed to falling into water - more
than the proportion that drowned during recreational swimming (16%) (Royal Life Saving
Society Australia, 2013). In the UK, an analysis of accidental drowning fatalities in 2004
reported that more than a quarter (28%) of the annual drowning toll were unintentional
submersions and, of these, half (52%) were attributed to falling in (Royal Society for the
Prevention of Accidents, 2005).
Research evidence. Connelly (2014) examined over 3,000 reports, from both official
and media sources, which indicated that many victims had succumbed to various debilitating
environmental factors such as cold, exhaustion, entrapment, water movement, and the inability
to hold on at the water’s edge.
In a study of exit competencies among young adult students (n = 37) in the confines of a
swimming pool, all participants were able to exit shallow and deep water when fresh, after a
swim when wearing clothing or a lifejacket, but many failed to exit deep water over a 410mm
ledge in clothing (35%) or in a lifejacket (49%) (Moran, 2014b). Significantly more females than
males found exiting deep water difficult. Most participants (especially males) under-estimated
the demands of exiting deep water. It is worth noting that swimming competency also did not
appear to be a factor in successful exiting of the water, with very good female swimmers
experiencing similar difficulties to their male and female counterparts of lesser swimming
competency.
The difficulty encountered by many in exiting the water wearing a lifejacket requires
further investigation (Moran, 2014b). It appeared that the bulk of the lifejacket restricted the
lifting phase of the deep water exit over a 410mm ledge for many participants both male and
female, irrespective of swimming proficiency. This raises an interesting question as to whether
a lifejacket should be removed prior to attempting an exit of this nature in an emergency; the
consequences of which would be lost buoyancy in the event of a failure to exit that may then
exacerbate continued survival in the water (Moran, 2014b). Further research of lifejacket exits
in a variety of settings and with varied victim capabilities is required so as to determine what
strategy to recommend.
Recommendations. As suggested by Golden and Tipton (2002), the issue of hand grip,
dexterity, and the capacity to hold on is also likely to influence exiting competency in cold
conditions and perhaps should be listed as a sub-category in this competence.. Further study of
the effects of cold and the effect of various forms of attire (for example, different layers of
clothing for summer/winter, with and without footwear) on attempting to exit the water will add
to understanding of the ‘exit problem’ and make safety and survival advice better informed.
On the basis of the research reported above, we recommend that:
1. Ways of exiting the water be introduced at an early stage and made progressively more
challenging as the learner matures,
2. Exit competencies should be practiced in shallow and deep water, with and without clothing,
in fatigue situations, in open water, and with different exit heights and surfaces, and
3. Explore appropriate and alternative techniques in a range of tasks that simulate possible exit
problems.
8. Personal Flotation Device (PFDs/life jackets) Competence
In spite of the logic of life jacket use as protective practice, only in recent years has evidence
appeared which directly links it with reduction in drowning incidence (Cummings, Mueller, &
Quan, 2011). In the same period, more evidence has accumulated which documented the
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likelihood of PFD use or non-use associated with drowning episodes. While factors have been
identified that increase compliance, mandated use in specific settings such as boating varies
widely.
Research evidence. Use of approved life jackets has been shown to be effective in a 50%
reduction in drowning deaths associated with boating activities (Cummings, Mueller, & Quan,
2011; Stempski, Schiff, Bennett, & Quan, 2015). Compulsory use of life jackets on boats
decreased drowning fatalities from 63 to 19 % (Bugeja, Cassell, Brodie, & Walter, 2014).
Several factors impacted life jacket effectiveness: these included using the crotch strap (Lunt,
White, Long, & Tipton, 2014) and being familiar with how to use them - a critical issue
(MacDonald, Brooks, Kozey, & Habib, 2015). A community campaign found reported life jacket
use increased when a parent felt comfortable choosing and fitting it on their child (Bennett,
Cummings, Quan, & Lewis, 1999). This finding suggests that specific training with a life jacket
is essential.
Life jacket use has been promoted for children or weak swimmers recreating in and/or
near water. Community-based campaigns have led to the availability of life jacket loaner stations
with anecdotal case reports of saved lives (Bennett & Bernthal, 2001). A prospective study of a
seasonal law mandating life jacket wear while in, on, and near rivers in a county in the state of
Washington (WA) USA noted there were no drowning deaths that season. No other study to
date has been conducted on the efficacy of life jacket use for non-boating activities such as
wading or swimming.
Increasing life jacket wear among swimmers has primarily focused on children but
resulted in observed, non-mandated use of life jackets of 50% among children less than 6 years
of age and 20% of those 6-12 years while swimming/wading in designated swim areas in WA
state (Quan, et al., in press). In contrast, 26% of teens and 21% of adults used some type of non-
life jacket flotation device. Thus, flotation device use was surprisingly common at all ages, but
better understanding of the need to use approved life jackets is needed (Quan, Mangione,
Bennett, & Chow, in press).
Promotion of life jacket use is simple: Mandating life jacket use has led to very high life
jacket wear rates (exceeding 90%) observed among those required to wear them: children, users
of personal water craft, those being towed behind boats (e.g., water skiers), and those in boats
in mandated waters (Chung, Quan, Bennett, Kernic, & Ebel, 2014; Mangione & Chow, 2014).
Promotion of voluntary use of life jackets has had mixed success. American and New
Zealand teens, especially males, are either unaware of or resistant to life jacket use (Bennett,
Quan, & Williams, 2002; Bennett et al., 1999; Moran, 2006). Surprisingly, 50% of WA state
teens in boats wore them though non-mandated, probably because they grew up under the life
jacket law which mandates use for children 12 years and under. Moreover, adult modelling
promotes wear: children and teens had higher life jacket wear rates when an adult in the boat
wore a life jacket (Chung et al., 2014). Promotional efforts have also led to increased use among
land-based fishers at high risk fishing sites (Moran, 2011): fewer fishers reported never wearing
a buoyancy aid (2010: 35% vs. 2006: 72%) and more reported wearing them sometimes (2010:
35% vs. 2006: 23%) or often (2010: 31% vs. 2006: 4%). Despite massive promotional efforts by
their Coast Guard, life jacket use among US and Canadian boaters, especially motor boaters and
fishermen, has remained stubbornly low for decades. When queried, boaters stated that a) life
jackets were uncomfortable, b) wear implied inexperience, c) they wore life jackets in bad
weather and bad water conditions, and d) would only wear them otherwise if mandated
(Quistberg, Bennett, Quan, & Ebel, 2014, Quistberg, Quan, Ebel, Bennett, & Mueller, 2014).
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Recommendations. Further research is required to determine the effectiveness of life
jacket use in recreational activity such as while swimming or playing in or near the water (Quan,
Liller, & Bennett, 2006). Further study of successful promotions of life jacket use among boaters
along with subsequent reductions in drowning is also needed.
On the basis of the research reported above, we recommend that:
1. Life jacket wear should be promoted and taught as a key safety device when in, on, or near
water,
2. Proper fitting and wearing of a lifejacket should be taught and practiced,
3. Donning of the life jacket should be physically practiced in all water safety programs, and
4. All physical water competencies should be practiced with a life jacket, recognizing that they
permit only modest levels of surface diving and swimming under water.
9. Clothed Water Competence
Unintentional falls into water, often when fully clothed, are a frequent source of open water
drowning. A widely held, and frequently reported, public perception of the impact of clothing in
unintentional immersion is that clothing ‘weighed the victim down’ and was the cause of
drowning. Yet little is known about the effect of clothing on water survival competencies such
as swimming and floating in the prevention of drowning (Moran, 2014a). Moreover, little is
known about how people perceive the physical exertion that such competencies may require if
entering the water when clothed or how close their perception is to the reality of actually
performing the tasks when clothed (Moran, 2015).
Research evidence. At an exercise intensity above 60%O, clothed swimmers showed
a slightly higher rate of perceived exertion (RPE) in the front crawl stroke compared to the RPE
reported for breaststroke and elementary backstroke (Choi, et al., 2000). Amtmann and
colleagues compared the effect of standard work clothing for railway workers (N = 9) on the
water competencies of speed swimming, and treading water (Amtmann, Harris, Spath, & Todd,
2012). They found that standard labor wear had an adverse effect on sprint swimming (11.4m),
treading water time, and significantly increased the rate of perceived exertion (RPE) for both
tasks.
Similarly, lightweight clothes significantly reduced both sprint swimming speed (33%
slower time) of physical education students (N = 12) over a distance of 25m and distance swum
in 5 minutes (28% less distance covered) without significant deterioration in flotation,
irrespective of age or sex results were reported (Moran, 2014a; Moran & Moran, 2015). Greater
depreciation was noted in the sprint swim for those who self-reported low water competence. In
a follow-up study, participants (N = 37) reported significantly greater exertion ratings post
activity than they had estimated for all activities, especially when clothed, irrespective of age,
sex, or self-estimated water competency (Moran, 2015).
In an exploratory study by Stallman, Laakso and Kjendlie (2011), wearing clothing had
a deleterious effect when performing of a 200 m combined test compared with the same test
performed in swimwear among 10-year-old children (N = 63). Follow-up studies in 2013 with
128 children (Stallman, Laakso, & Hornemann, 2013) and in 2014 with 490 children (Laakso,
Horneman, Grimstad, & Stallman, 2014) using the same 200 m combined competency test found
that a significant number of children able to swim in swimwear were judged unable to swim with
outer clothing.
Recommendations. The minimal effect of clothing on flotation recently reported
(Moran, 2014, 2015) is interesting. First, it further reinforces previous evidence (Barwood,
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Bates, Long, & Tipton, 2011) that clothing, rather than weighing a victim down, may not only
provide initial buoyancy in sudden immersion but also insulation and continued buoyancy in
subsequent survival. Second, it suggests that in the event of a sudden immersion, lightweight
clothing need not be removed since it does not appear to add to flotation difficulties and
removing it may require additional energy expenditure and possible loss of trapped air,as well
as increasing the rate of heat loss. Third, it appears that, in case of competent swimmers at least,
differences in overall proficiency did not affect the capacity to float when wearing clothes. This
needs to be tested with less able swimmers and with differing forms of clothing before firm
conclusions can be reached (Moran, 2014).
On the basis of the research reported above, we recommend that:
1. The wearing of clothing when developing all physical water competencies is encouraged,
2. Clothing should be introduced at an early stage of competency development starting with
lightweight clothing and progressively increasing the task demands and clothing coverage,
and
3. The use of clothing in conjunction with simulated exercises such as falling in and climbing
out, in calm and rough water, and in closed and open water is encouraged.
10. Open Water Competence
In an open-water situation (where most drownings occur), water competence is likely to be
compromised by many impediments such as cold air and water temperatures, rough (e.g., waves,
surf) water, and clothing (Moran, 2015). Water survival competencies in open and closed water
environments have recently been identified as a research need in the revised edition of
Drowning: Prevention, Rescue, and Treatment (Stallman, Moran, Rahman, & Brenner, 2014).
The lack of consistency in safety advice is exacerbated by an underlying lack of research as to
what constitutes open water competencies. Exploration of open water competency from a
drowning prevention perspective would thus benefit from experiencing challenges that simulate
survival conditions rather than simply assessing swimming performance (e.g., time, distance).
Research evidence. Several studies have noted the debilitating effect of cold on
swimming performance (Datta & Tipton, 2006; Ducharme & Lounsbury, 2007; Golden,
Hardcastle, Pollard, & Tipton, 1986; Tipton, 2003; Tipton, Eglin, & Golden, 1998; Tipton, Eglin,
Gennser, & Golden, 1999; Tipton, Stubbs, & Elliott, 1990). An early UK study (Home Office,
1977) had shown that most UK drownings occurred within 3-4m of safety. This prompted
experts to realize that hypothermia was unlikely the cause of these drownings. The cold shock
response (CSR), the body’s immediate reaction to cold water immersion (CWI), was a far more
plausible explanation (Tipton, 1989; Tipton, 2003; Tipton, et el., 1999). Mantoni and colleagues
(Mantoni, et al., 2008) demonstrated that voluntary breath control alleviates elevation of
respiratory rate and reduction of blood flow to the brain. Choi and colleagues (Choi, Ahn, Choi,
Kim, & Park, 1996) showed that leg exercise while immersed in water (stepwise from 150C -
350C), tended to alleviate the reduction in core body temperature, especially at colder levels.
Barwood and colleagues (Barwood, et al., 2016) examined treading water first compared to float
first. They found that treading alleviated the reduction of cerebral blood flow found in floating,
but alone did not alleviate the elevation of respiratory rate.
One study has suggested that clothing may have a beneficial effect in drowning
prevention by providing immediate flotation, the consequence of trapped air in clothing layers
(Barwood, Bates, Long, & Tipton, 2011). In addition to providing some insulation to the
hypothermic effects of cold water immersion, the buoyancy also may help the victim to cope
with CSR and importantly provide vital seconds to allow the victim to make rational decisions
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about how to extricate themselves from the situation (Golden & Tipton, 2002). Habituation,
mental training, and/or knowledge about CSR can alleviate the reflexive increase in respiration
rate with attenuating danger of hyperventilation (Bird et al., 2015a; 2015b; Tipton et al., 1998;
Barwood et al., 2006; Mantoni, Belhage, & Pott, 2006; Croft, et al., 2013). This new approach
to sudden immersion in cold water has been termed the float first drowning prevention strategy
(Barwood et al., 2011).
Recent evidence on the debilitating effect of simulated rough water on water competency
among 11-year-old children (N = 66) concluded that rough water conditions resulted in an 8%
decrement in swimming performance in a 200 m swim and a 24% decrement in floating
performance (Kjendlie et al., 2013). Significantly slower swimming speeds of 30-57% have been
reported among lifeguards swimming in calm versus surf sea conditions (Tipton, Reilly, Rees,
Spray, & Golden, 2008).
Recommendations. Further research is required on the teaching of simulated open water
situations (e.g., rip currents, choppy water, aerated water). Further study also is needed on
whether and to what degree water competencies taught in the pool may transfer to open water
conditions for all populations at risk, but especially those in high risk groups (e.g., males, youth,
inexperienced swimmers, young adults) engaged in high risk activities (e.g., rock-based fishing,
boating).
On the basis of the research reported above, we recommend that:
1. All competencies taught need to relate to both open and closed water environments,
2. Simulated open water competencies can be introduced at an early stage of competency
development starting with simple tasks such as water splashing to create wave and currents,
3. Increasing the task demands by using combinations of activities (e.g., entry, swimming on
the surface, swimming underwater through underwater hoops, negotiating obstacles) both
when fresh and fatigued, and
4. All water safety programs taught in pools should simulate (e.g., with scenarios) rough water
at developmentally appropriate levels for each physical water-based competence.
11. Knowledge of Local Hazards
The promotion of safety knowledge has been central in injury prevention interventions and is
based on the supposition that by influencing people’s knowledge, their attitudes will change and
so will their safety behavior (Andersson, 1999). While the relationships among knowledge
attitudes-behaviors (KABs) appear axiomatic, empirical evidence to support these relationships
in drowning prevention is sparse. Moreover, environmental hazards such as tides, wind, waves,
rip currents, river currents, changing bottom conditions, and cold water are common at many
open water recreational sites but are unique to each area. Thus, knowledge about one area may
not be transferable to others.
Another characteristic of local hazards is that they represent what Newell (1986) has
described as dynamical constraints, which represent changes in demands based upon changing
relationships among the individual’s characteristics, the specific task demands, and the aquatic
environment, thereby altering the individual’s expression of their water competence
(Langendorfer, 2015). An obvious example of the dynamic nature of local hazards are changes
in the coastal morphology of bays, headlands, and harbours at different points in the tidal flow.
Seasonal changes in weather (e.g., wind and cold) and water conditions (e.g., waves and rough
surface water) are other obvious dynamical constraints likely to impact one’s competence and
water safety. Having a basic understanding of such hazards and an awareness of the risks they
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pose should help inform safe decision making, especially when engaged in high risk activities
(e.g., rock-based fishing) and in high risk locations (e.g., surf beaches).
Research evidence. Recent evidence has suggested that the public vary in their
awareness and accuracy of information of environmental hazards and their impact on their water
safety. Youth and young adults have been shown to have a poor understanding of rip currents
(Gulliver & Begg, 2005; Moran, 2008c; Willcox, Moran, & Kool, in press). Adult beachgoers
have been identified to lack knowledge of the danger of rip currents in New Zealand (McCool
et al., 2008), in the US (Brannstrom, Trimble, Santos, Brown, & Houser 2014; Caldwell, Houser,
& Myer-Arendt, 2013) and in Australia (Sherker, Williamson, Hatfield, Brander, & Hayen,
2010; Williamson, Hatfield, Sherker, Brander & Hayen, 2012).
Some studies have suggested that tourists are at greater risk of drowning because of
unfamiliarity with local environmental hazards. In Australia, a study on beach drowning
incidents suggested that a quarter of all fatalities from 2001-2005 were tourists (Morgan,
Ozanne-Smith, & Triggs, 2008). Other Australian studies have suggested that the higher
incidence of surf-related drowning among visitors reflects lack of water competency, surf safety
knowledge, or experience of the beach (McKay, Brander, & Goff, 2014; Williamson et al.,
2012). A recent New Zealand study found that, while international tourists were more likely than
residents to hold unsafe beliefs about swimming and boating activity, both residents and visitors
had a poor understanding of rip currents (Moran & Ferner, 2017).
Mounting evidence of the efficacy of rip current education has suggested that knowledge
of environmental hazards is a critical competency for those exposed to such hazards. Studies of
interventions in the US, in Brazil, (Klein, Santana, Diehl, & Menzies, 2003), in Australia
(Hatfield, Williamson, Sherker, Brander & Hayen, 2012) and the UK (Woodward, Beaumont, &
Russell, 2015) concluded that education and campaigns improved rip current awareness. A
recent analysis of rip current videos on YouTube has suggested that while existing videos are
good at providing a visual image and a range of escapes, greater emphasis needs to be placed
upon rip current recognition and avoidance (Mackellar, Brander, & Shaw, 2015).
As previously reported in discussion of open water competencies (see previous
competency 10), the debilitating effect of cold and rough water make open water immersion,
intentional or otherwise, highly problematic. The effects of sudden immersion (CSR cold shock
response) and prolonged immersion (hypothermia) are now well known yet application of this
knowledge to the teaching of water competence is not the norm. Similarly, while one study
(Kjendlie et al., 2013) has measured survival in simulated rough water, routinely including such
simulations in teaching is not common and is poorly understood.
Recommendations. Further research is required to determine a) how knowledge of water
and weather conditions in other settings (e.g., ice, lakes, rivers) might impact the frequency of
drowning incidents, b) the effect of environmental hazards such as ‘wind chill,’ ‘wave splash,
and ‘white water’ aeration on drowning prevention and c) the effect of educational interventions
aimed at enhancing knowledge of hazards in the aquatic environment.
On the basis of the research reported above, we recommend that:
1. Where developmentally appropriate, an understanding of environmental hazards be
sequentially introduced during the acquisition of water competency in both pool and
classroom environments,
2. Experiential exploration of hazards (e.g., simulated rip currents, rough water) be part of the
development of swimming and floating proficiency,
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3. Where developmentally appropriate and safe, beginners be given the opportunity to identify
and observe local water hazards when discussing water safety principles and practice,
4. Where developmentally appropriate and safe, more advanced experiences of open water
hazards and fatigue conditions be part of the curriculum, and
5. Ways to inform users of site hazards be developed at all local sites to aid development of this
competency.
12. Coping with Risk Competence
Risk awareness, assessment, and avoidance. The risk of drowning inherent in aquatic
activity, either intentional or otherwise, is pervasive and omnipresent. It encompasses, at its
heart, how humans interact with the environment and what competencies and understanding they
bring to that environment (Moran, 2006). Even though judgment of risk is considered to be an
essential element of decision-making competence (Gittler, Quigley-Rick, & Saks, 1990), the role
of risk judgment in relation to drowning is poorly understood (Moran, 2006). Although little
evidence is currently available to evaluate poor risk judgment, some studies have claimed that
males are more likely to drown than females as a consequence of overestimating their ability and
underestimating risk (e.g., see Howland, Hingson, Mangione, Bell, & Bak, 1996). How
individuals conceptualize and respond to various risk dimensions is crucial to the development
of salient health promotion messages aimed at increasing safe behavior around water (McCool
et al., 2008). Furthermore, the slow maturational rate of development of both risk awareness and
judgement until age 25 years, the peak years of drowning, suggests the need to develop additional
approaches among the 15-24 year-old high risk group.
Some have suggested that the protective effect of being able to swim might be offset by
the increased exposure to aquatic risk inherent in performing that skill (Baker, O’Neil, Ginsburg,
& Li, 1992; Smith, 1995), yet little documented evidence exists to confirm the validity of this
relationship. Baker and colleagues (1992) went further and suggested that the ability to swim
“could lead to overconfidence or to swimming in places with hazardous currents or undertow”
(p. 183). Given this possibility, it would be prudent to make learners (especially males) aware of
the risks associated with the aquatic environment while concurrently engaging in risk awareness,
risk assessment, and risk avoidance when developing physical water competencies. Wiesner and
Rejman (2015) suggested that, in addition to risk avoidance, risk can be effectively managed in
the aquatic environment by teaching sound risk management strategies that included risk
retention, risk transfer, risk compensation, risk diversification, and risk monitoring techniques
as a routine part of swimming/water safety education.
Research evidence. Differences in public perceptions of drowning risk have become
more apparent in recent years. Traditionally youth have been identified as being unable to
accurately assess risk (Millstein & Halpern-Felsher, 2002). A national water safety study of New
Zealand youth (N = 2,202) found significant gender differences with males consistently
underestimating the risk of drowning associated with a range of risk scenarios (Moran, 2009).
For example, almost twice as many males thought being caught in a rip at an unpatrolled beach
to be slight /no risk (males 40%, females 24%) and twice as many males considered being swept
off isolated rocks when fishing to be slight /no risk (males 23%, females 12%).
In the Can You Swim? international study (N = 373), young adult males from four
countries consistently reported lower estimates of drowning risk even though their water
competence was no better than that of their female counterparts (Moran et al., 2012). In a study
of beachgoers (N = 3,371), McCool and colleagues (2008) found that young adults and men were
more likely to self-report strong swimming competence along with lower perceptions of
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drowning risk. Similarly, low perceptions of the risk of water-related injury or drowning among
males have been reported among rock-based fishers (Moran, 2008b), among young adults,
(Gulliver & Begg, 2005), and new settlers (Moran & Willcox, 2010). In contrast to these
findings, females and those with poor self-estimated swimming competence have been found to
have a heightened sense of the risk of drowning and thus a greater tendency towards risk aversion
(McCool et al., 2009; Moran, 2009). Emerging evidence in a low income rural setting, where
domestic rather than recreational activity is the more frequent reason for immersion, suggested
that risk taking or risk exposure was not adversely affected by participation in swimming lessons
(Mecrow et al., 2015).
Some evidence has been published on variable parental perceptions of safety and risk at
the beach (Moran, 2009). Of special concern was that male parents’ estimates of risk of drowning
for their 5-9-year-olds differed significantly from that of female parents with twice as many
males reporting no risk at the beach on the day of the survey (males 37%, females 18%). The
implication of this on young children’s water safety is that male caregivers may not provide close
and constant supervision of young children in the water at the beach in the mistaken belief that
conditions are not potentially dangerous.
Recommendations. Further research is required to ascertain the risk assessment
capacities of population groups at greatest risk (e.g., males engaged in high risk activities and
high risk environments). Further study also is needed on the effect of future water safety
programs on shaping drowning risk perceptions and subsequent aversive behaviors.
On the basis of the research reported above, we recommend that:
1. Risk awareness and risk avoidance be an integral part of any water safety program from the
outset,
2. Where developmentally appropriate, risk assessment activities be sequentially developed
alongside the acquisition of physical competencies,
3. Identifying and coping with the risks associated with water activity be taught in simulated
survival activities, and
4. Risk identification and avoidance activities be an integral part of situated learning in open
water environments such as the beach, river or lake.
13. Assess Personal Competence
While most drowning prevention advocacy has beenunderpinned by the assumption that the
possession of swimming skill is protective, little is known about how people assess their
competence or the accuracy of their estimates. Because little consensus has existed on what
constitutes water competence and the difficulty of assessing competence under varying
conditions, much drowning prevention research has had to rely on participants’ self-estimates
regarding their competence in relation to risk of drowning. The lack of an international measure
to define swimming competence is suggested as one reason that people may have inflated self-
efficacy of their swimming competence (Dixon & Bixler, 2007). The likelihood of inaccuracy
of self-estimation is further compounded by the likely lack of any real swimming assessment
that is recent or relates to the variable demands on personal competence posed by clothing and
open water environments. The implications of an overly-optimistic belief in the protective value
of minimal levels of swimming competency for open water safety is that it is likely to increase
the risk of drowning for not only the individual but also those in their care (Morrongiello,
Sandomierski, Schwebel, & Hagel, 2013; Morrongiello, Sandomierski, & Spence, 2013; Moran
& Stanley, 2006). Given these potential dangers, it would be prudent to inculcate realistic
competence appraisal strategies from the outset and make continual associations between the
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adequacy of an individual’s physical competence base and the variable demands likely to be
placed upon it by challenging activities and environments.
Research evidence. Recent evidence suggested that, in conjunction with
underestimation of risk previously discussed, overestimation of ability might be another critical
factor in male over-representation in drowning statistics (McCool et al., 2008; 2009; Moran,
2008; 2011). Significant differences between estimations and actual competencies have been
shown with other survival competencies such as swimming in moving water (Kjendlie, Pedersen,
Thoresen, Setlo, Moran & Stallman, 2013), in clothes (Moran, 2014a; 2015), and exiting the
water safely (Moran, 2014b). A study on minority groups (n = 194), traditionally reported as
among those at high risk of drowning, found that most (70%) considered themselves to be good
swimmers even though most (73%) could not swim more than 25m and most (73%) thought that
this capability would keep them safe (Stanley & Moran, 2017).
Several studies within the “Can You Swim?” international project have shown that both
young adult males and children are not particularly good at accurately predicting what they really
can do in the water (Moran et al., 2012). In New Zealand (Moran, 2010), Australia (Petrass,
Blitvich, McElroy, Harvey, & Moran, 2012), Norway (Stallman, Dahl, Moran, & Kjendlie,
2010) and Japan (Goya, Teramoto, Matsui, Shimongata, Doi, & Moran, 2011), young adult
males perceived their competence to be better than it really was. In both Norway (Kjendlie et al.,
2013) and Portugal (Queiroga, Blitvich, McElroy, Moran, Fernandes, & Soares, 2013), children
were unable to accurately predict what they could do in the water. A recent US study has found
that educated, affluent parents (N = 482) attending a public pool session with their school-aged
child and who reported that their children had ‘good skill,’ in fact correlated with passing the
swim test; a report of having had formal swim lessons did not correlate (Mercado et al., 2016).
An Auckland parent/caregiver study (n = 309) on perceptions of how much swimming
competence was required to provide protection from drowning found that most parents (58%)
considered themselves good/very good swimmers although more than half (55%) estimated that
they could swim 25 m or less (Stanley & Moran, 2017). Most parents (87%) reported that their
children could swim with more than one half (52%) believing that their child’s swimming
competence was good/very good; yet most (74%) considered their child could swim only 25 m
or less. Most parents (59%) and almost all children (81%) had never actually swum their reported
distance in open water. In spite of these low levels of competence, one half (51%) of parents
thought their children were safe/very safe in open water. A study of parents (n = 769) and their
children at beaches found male caregivers were more likely to rate themselves and their 5-9-
year-olds as good swimmers and less likely to estimate a high risk of drowning for that age group
(Moran, 2009). Higher estimation of a child’s swimming capability may reduce the level of
attention paid by males when supervising their children at the beach.
Recommendations. Further research on the relationship between perceived and real
water competencies may provide valuable insight into the possibility that overconfidence in
one’s capability to cope with the risk of drowning may exacerbate that risk. Further investigation
is needed to determine the degree to which these findings are replicated in other populations to
ascertain whether low association indeed exists between perceived and actual swimming
competence.
On the basis of the research reported above, we recommend that:
1. Throughout the acquisition of water competence, learners should have the opportunity to
assess their real competency and compare it with perceived estimates,
2. Where developmentally appropriate, real competencies should be assessed along with self-
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estimated in closed and open water settings,
3. Where developmentally appropriate, real and perceived competencies should be assessed
under varying fatigue-inducing conditions (e.g., rough, wavy water) and while performing
challenging tasks (e.g., survival circuits), and
4. Where developmentally appropriate, differences between real and perceived competence be
discussed in the context of drowning prevention when caring for self and others in water.
14. Recognise and Assist a Drowning Person
The potential value of bystanders as rescuers has been identified in the Global Report on
Drowning as one of the key components in a list of ten actions to prevent drowning worldwide
(WHO, 2014). Because most bystander rescues are not reported, the real extent of life-
threatening submersion experiences (LTSEs) that have involved bystanders in rescue activity
remains elusive (Moran, 2010). A survey of 1,000 adults in the U.S. found that the magnitude of
the problem may be greater than imagined with one in every two adults (48%) having reported
an LTSE (American Red Cross, 2009). A survey of 3,000 adult beachgoers (McCool et al., 2008)
found that one third (30%) reported having had an LTSE.
Research evidence. While most drowning events are preventable, many require the
intervention of others and, in some circumstances, the consequences of such intervention can
itself result in loss of human life. The loss of rescuer life in drowning emergencies has been
described by Franklin and Pearn (2011) as the aquatic-victim-instead-of-rescuer (AVIR)
syndrome. In many developed countries, it is a small but persistent cause of drowning mortality
(Moran & Stanley, 2013). In China, rescuers’ mortality rates were similar to those being rescued;
a majority of rescues were person to person (Zhu, Jiang, Li, Li, & Chen, 2015). While the risk
factors associated with bystander rescue are now well known and reported, it is unlikely that
altruistically motivated rescuers will resist impulsive attempts to rescue a drowning person
(Pearn & Franklin, 2012). Given this likelihood, educating the public about how to recognise
those in trouble in the water and providing safe ways of assisting them are needed.
Recently, some attempt has been made to analyze the underlying motivations of the
rescuer who drowns (Pearn & Franklin, 2012), but little is known about what skills and
knowledge the rescuers possessed that would have prevented their drowning. One study has
found that more than half of fit adults tested in a simulated drowning incident on dry land could
not throw a lifeline accurately (Pearn & Franklin, 2009).
A nationwide water safety survey of New Zealand youth found that one third (35%)
considered that they had no rescue ability, and more than one half (59%) expressed doubts about
their ability to perform a deep-water rescue (Moran, 2008). A lack of rescue ability has also been
reported among 21-year-old Dunedin young adults, most of whom (52%) had not received any
lifesaving training (Gulliver & Begg, 2005). In a study of parents/caregivers (N = 769) in charge
of children under 10 years of age at 18 New Zealand beaches during the summer of 2007, more
than three quarters (76%) of the adults surveyed had not received any rescue/lifesaving training
(Moran, 2009). Importantly, male beachgoers were more confident of their ability to rescue their
child even though they reported no more lifesaving training than females that took part in the
study.
In an attempt to ascertain the level of public knowledge of safe rescue techniques,
festivalgoers (N = 415) attending a cultural event in Auckland, New Zealand took part in a water
safety survey that included information on their readiness to respond in a drowning emergency
(Moran & Stanley, 2013). Many indicated they would jump in and rescue a victim (47%) the
most at-risk option - while less than one third (30%) would get flotation to the victim the most
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effective and low risk option. Significantly more males responded that they would jump in and
attempt a rescue (males 55%, females 40%).
In a follow-up study designed to promote safe rescue techniques, parents (N =174)
participating in a family-oriented water safety program were exposed to a new teaching resource
entitled the 4Rs of rescue recognise, respond, rescue, and revive (Moran, Webber, & Stanley,
2016). At the start of the program, most respondents (71%) had never been taught rescue
techniques, and males were more confident than females of their rescue ability. Upon completion
of the program, significant differences were evident in respondents’ understanding of rescue
safety but this did not translate to greater confidence or disposition towards performing a rescue.
Emerging evidence from the SwimSafe program taught in rural Bangladesh from 2006,
found that children who had participated in the program reported more rescue activity when
compared with age- and sex-matched controls (Mecrow et al., 2014). Most reported contact
rescues of younger children with the rescuer standing in the water less than 10m from land.
Recommendations. Further research is required on a) public perceptions of how best to
assist others in trouble in the water, b) the nature, extent, and effectiveness of current public
lifesaving education, and c) the effectiveness of easily-accepted and learned contact and non-
contact rescue techniques for lay persons.
On the basis of the research reported above, we recommend that:
1. Ways of recognising and assisting others in trouble in the water be sequentially introduced
from the outset. Where developmentally appropriate, safe non-contact ways of assisting
others from land be taught with ‘safety of self’ paramount in all teaching,
2. Where developmentally appropriate, simulated rescue activity be taught in sequentially more
challenging scenarios,
3. Where developmentally appropriate, in water rescue techniques (using various forms of at
hand objects) and its inherent dangers be discussed in a variety of simulated open water
scenarios, and
4. The use of direct body contact swimming rescues (DBC) be systematically discouraged in
any educational attempt to impart lifesaving/water safety skills to the general public.
15. Water Safety Competence
15a. Attitudes. Attitudes are defined as “a relatively enduring organization of beliefs
around an object or situation pre-disposing one to respond in some preferential manner”
(Rokeach, 1986, p. 112). Water safety attitudes are considered important to the construction of
drowning risk because they serve both motivational and cognitive functions by providing a frame
of reference for organizing information (Aiken, 2002). They are thus likely to be closely
associated with knowledge.
15b. Values. Similar to attitudes, values are strongly-held personal principles that may
impact the probability of a person acting or not. Values may or may not depend upon knowledge,
but are related more to affect or emotions.
Research evidence. The relationship between attitudes and behavior regarding life jacket
use closely resembles that of seat belt and bicycle helmet use. Chung and colleagues (Chung, et
al., 2014) found that among those not covered by a life jacket law, use was significantly lower
than for those covered by a law. Life jacket use among children and youth was significantly
higher when at least one adult in a boat also was wearing a life jacket. In similar fashion, Ehrlich
and colleagues (Ehrlich, Helmkamp, Williams, Hague, & Furbek, 2004) found that children who
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cycled together with their parents were more likely to wear a helmet and that children were more
likely to wear a seat belt when the parents always did so. These studies suggest that both child
attitude and behavior are influenced by parents, though the mechanism is poorly understood.
Petrass and Blitvich (2014) examined knowledge, attitudes, and water safety skills of young
adults (N = 135). They then conducted a 12-week intervention and found that both knowledge
and skills improved while attitudes changed only insignificantly. These results suggested that an
intervention can provide positive effects but that changing attitudes was difficult. Wintermute
and Wright (1990; 1991) found that among private pool owners who claimed to favor the
compulsion of fencing, only 35% had themselves installed such fencing. In their second study,
among pool owners who supported CPR training, only 50% had actually had such training.
White and Hyde (2010) examined the intentions of beachgoers to swim between the flags.
Fourteen days later they asked a subgroup of the subjects to report their behavior during the
previous fortnight. Their self-reported behavior correlated positively with their earlier
“intention,although younger persons and males were predisposed to swim outside the flags,
contrary to their original intention. A study of rock-based fishers found positive attitudes towards
the wearing of lifejackets when fishing from rocks was initially not reflected in actual use of the
lifejackets, but, as a consequence of a 5-year-long safety promotion, lifejacket use improved
from 4 - 40% (Moran, 2011a).
Barriers to changing attitudes and values may be based on misconceptions as well as
beliefs. Several studies have found that some parents of children involved in swimming lessons
had the attitude that their children needed less supervision once they had received swimming
lessons (Moran & Stanley, 2006a; 2006b; Morrongiello et al., 2013; 2014; Willcox-Pidgeon,
Moran, & Kool, 2017). Sherker and colleagues (Sherker, Williamson, Hatfield, Brander, &
Hayen, 2010) found that beachgoers between 30 and 49 years of age were more likely to swim
outside of the flags believing themselves to be safe while those with children and those with a
basic knowledge of rip currents were less likely to swim outside of the flags. Vietnamese
American parents believed that drowning was ascribed to “fate” and were not receptive to
preventive measures (Quan, Crispin, & Bennet, 2006). However, despite similar beliefs in
Bangladesh, specific interventions that increased supervision and swim skills decreased
drowning deaths (Rahman, et al., 2011).
Recommendations. How water safety attitudes and values relate to knowledge and how
they might affect behavior is difficult to measure and remains poorly understood. Further studies
within the realm of water safety research should include exploration of a) how likely attitudes
and values are to change, b) the role of attitudes and values in changing behavior, and c) how
attitudes and values are related to and influenced by knowledge.
On the basis of the research reported above, we recommend that:
1. Positive attitudes be recognized from the outset of water competence development as
foundational and consciously integrated into all water competence/water safety educational
programs. This should include safety for both self and for others,
2. Verbal or physical expression of positive attitudes be systematically rewarded,
3. Creative ways be devised to promote positive attitudes towards water safety as a way of life,
and
4. Practical interventions be developed and instituted that change the culture around water
safety.
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Discussion and Conclusions
Our paper presents water competence as an inclusive and comprehensive multi-faceted construct
that provides the foundation for the teaching of water safety as a means to prevent drowning.
Multiple competencies are described and recommended because they represent the physical,
cognitive, and affective competencies which together make a person water competent and thus
less susceptible to the risk of drowning. These are supported by research evidence showing how
each competency offers protective value. In some cases the studies cited were not originally
conducted specifically to address or support water competence or the idea of drowning
prevention. Nevertheless, several such studies provided powerful evidence of the protective
value of water competence in preventing drowning.
To the best of our knowledge, justifying the inclusion of specific competencies in the
content of educational programs by citing supporting research evidence has not been done
before. We believe that this has not occurred primarily because much of the evidence cited in
our extensive review has only become available in the past decade or two. As we have pointed
out for each competence, further research is required on many if not all of the competencies
introduced within the conceptual framework presented in this paper. As new research in each of
the fifteen identified competencies becomes available, we fully expect that the way we view
water competence and the issues related to drowning prevention will change. Additionally, we
expect and hope that the list of competencies recommended here will be modified as new
research evidence and our understanding evolves.
It is important to note that the teaching content and associated pedagogies have not been
addressed here. We have recommended that developmentally appropriate pedagogies are
absolutely necessary for the effective achievement of each of the competencies. The
competencies as listed in our framework (refer to Table 1) are not intended to represent a
teaching progression. Each must be further studied to provide explicit developmentally
appropriate outcomes paired with specific pedagogical tools. In all likelihood, fifteen evaluative
tools paired with separate teaching progressions will need to be developed and validated. In some
of the more challenging competencies (e.g., open water, on-site risk appraisal, high risk activities
and environments), the safety of participants will require best practice teaching and instruction
including creative simulations. We offer this paper as a challenge to all aquatics educators and
aquatic organizations to expand on what is taught, when it is taught, and how it is taught.
We humbly offer this paper and its evidence-based foundation as a model for future
evidenced-based work. We propose the need for a more encompassing and dynamic view of
water competence and drowning prevention education that addresses the dynamic and complex
nature of drowning. It is time to move beyond teaching strokes. The water safety of all is too
important to be left to chance or to be informed by tradition, anecdotes, and axioms.
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Stallman et al.: Scientific Review - Water Competence
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... In addition to recording the frequency with which the analyzed books have conveyed the 15 water competencies, a scoring system has been constructed. The scoring system is based on the notion that as described by Stallman et al. (2017), all of the 15 water competencies are of roughly equal value. The scoring system had to be adapted to the original list of 15 water competencies given that the original list was not designed to be used for this purpose. ...
... The concept of WC (Stallman et al., 2017), selected as the criterion for this pilot study, explores the question 'What should we teach?' or, 'What should be learned in order to reduce the risk of an emergency scenario, in, on or around the water?'. This included a comprehensive survey of the literature to identify research evidence showing that certain water competencies have protective value. ...
... In general, if we accept the selected criterion as valid, we suggest that the sample of books analyzed do not compare well to the criterion and, thus, do not adequately convey the essential water competencies. An essential aspect of the original concept of 'water competence in a water safety context' (Stallman et al., 2017), is that all the water competencies are required for any given individual to be optimally protected against risk, at their current level of development, of experience and of WC. Water competencies missing or weakly developed relative to the others, become weak links and are usually the trigger which initiates an emergency. ...
Article
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Learning to swim promotes lifelong engagement in aquatic physical activity. Such engagement is defined as one of the six interventions identified by the World Health Organization (WHO, 2017) and is frequently considered to be prominent among those (Brenner et al., 2006; Stallman et al., 2014; WHO, 2014). The WHO emphasizes the importance of swimming and water safety, highlighting the alarming statistics of 320,000 drowning deaths annually making it the ‘3rd leading cause of unintentional injury death worldwide’ (WHO, 2020a). Experts, in fact, estimate that the real annual drowning incidence may be 2-3 times greater, or even more i.e., perhaps over one million (Peden et al., 2008), more than the annual burden of death by HIV related causes (WHO, 2020b) and nearly the same as the number of traffic deaths (WHO, 2018). Education is an integral part of learn-to-swim. Children’s books in general share everyday knowledge and can, therefore, help to partly educate our children, since the connection between learning to swim and reading is greater than expected. Strouse et al. (2018, p. 4) suggest ‘particular features of picture books […] may influence children’s tendency to learn and to transfer the educational content to real-world situations’, which will be examined by this study. Learning to swim is a common subject of children’s books. How the reader is influenced in what should be learned, is objective of this article. Thus, this pilot study aims (a) to assess to which extent children’s books convey the chosen criterion (i.e., Water Competence (WC)), (b) to evaluate which of the essential elements are most and least often included in the selected books, (c) to explore how both text and illustrations are used and (d) an attempt to create a model from which future research may be more broadly and inclusively conducted. By means of a descriptive analysis, the content of children’s books is compared with criteria from expert literature. The tentative results suggest that books show a great variation among criterion, if included, in text, illustrations and added material. The knowledge about swimming mediated by this genre may not be sufficient to educate safety and prevention to society.
... The third factor, movement control in water, emphasized the importance of acquiring two swimming skills: safe entry and gliding (Stallman et al., 2017). The degree of risk in water entry depends on the task, the environment and the individual (Langendorfer, 2010). ...
... The degree of risk in water entry depends on the task, the environment and the individual (Langendorfer, 2010). An accidental fall into the water requires the person to hold their breath, change direction, return to the surface, assume a oating position, rest and/or start moving in a certain direction (Stallman et al., 2017). ...
... Controlling the movement in water is the third factor in this questionnaire, which examines the ability to swim (entering the water and sliding in the water). In this factor, a person's experience, skill, environment and other variables can be effective (Stallman et al., 2017). Based on the fact that teaching swimming is considered as a creative work and the coach must teach using auxiliary tools and different methods in a unique way. ...
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Fear of water is the main indicator of a lack of weakness of swimming ability. Some people cannot learn how to swim because they avoid water completely, while others might have difficulty learning because they may not relax their bodies while swimming. Thus, it is necessity to recognize these individuals and develop effective teaching strategies for them. Teachers and swim coaches need an assessment tool to help them identify individuals who are afraid of water. The aim of this study was to adapt the Fear of Water Assessment Questionnaire (FWAQ) developed by Misimi and co-worker (2020) into Turkish. For adaptation, the original scale was translated into Turkish. 146 males (54.5%) and 122 females (45.5%), participated in the study. The FWAQ consists of 20 items and three subscales: contact with the water environment, the natural power of water, and the values of movement control in water. Cronbach's alpha, interclass correlation coefficient (ICC), confirmatory and exploratory factor analysis was used to determine the internal consistency of subscales, temporal reliability, construct validity of the scale respectively. Also, the results of the calculations performed to estimate the reliability of the scale factors show that the value of the Cronbach's alpha coefficient and interclass correlation coefficient (ICC) are good enough and considering that the internal consistency coefficients and temporal reliability of the components of the list are reasonable and appropriate, the reliability of the scale is confirmed. The results revealed that FWAQ showed relatively acceptable construct validity and acceptable internal consistency and test-retest reliability. The results of this study support the preliminary validity and reliability of the FWAQ for use in academic sport contexts.
... Thus the level of swimming skills of the studied group may be considered as average. The above mentioned, almost five-meter difference in the length of the distance covered (regardless of the swimming pattern), may determine one's safety in a threatening situation 5,12 . Although, even poor swimming skills in an emergency situation, when reinforced with high motivation, can provide a better chance for survival 35 . ...
... Taking into account the multiple levels of the competence of breath control 5 , it seems that the boys studied "can swim" (displace yourself in the water) but do not have "the competence" to swim effectively/safelymaintaining the rhythm of breathing-regardless of external disturbances (lack of goggles). These findings, in the scope of desirable pedagogical intervention, suggest that educators should consider sex differences in the feedback between visual perception (the goggle factor) and motor control (breath control). ...
... Following the aforementioned authors, it was assumed that the distance covered is one of the important indicators of the level of swimming skill. Based on the definition of breath control competence 5,6 , it was assumed that the ability to coordinate in time and space, arm movements, and stable rhythm of breathing without stopping is an indicator of breath control while swimming the crawl stroke. The ability to keep the breathing rhythm during swimming measured by a number of mistakes in breathing rhythm relative to the distance covered was treated as a measure of breath control competence. ...
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This study aimed to examine the ability of adolescents to maintain breathing rhythm while swimming with and without goggles, in the context of pedagogical interventions for implementation of water competence skills, rather than simply teaching swimming technique (strokes). 25 females and 25 males, 12–13 years old, swam the front crawl both with goggles and without goggles. Distance covered and the ability to maintain breathing rhythm were evaluated by experts. For both girls and boys, the lack of goggles reduced the breath control. The boys in contrast to the girls, could "swim" (cover a distance) but did not have the “competence” to swim effectively/safely—with breathing rhythm—regardless of the goggle factor. Goggle-free swimming as an autonomous component of water competence is highly recommended in elementary swimming education. The following elements for pedagogical intervention in the area of water competence development are proposed: (1) the formatting of breath control on the basis of the student's preferred, simplest form of swimming (not strokes); (2) the a priori treatment of swimming goggles as an unnecessary teaching aid; (3) the gender differences in area of both adaptation in visual perception (the goggles factor) and motor control (breath control factor) should be considered.
... Adolescents' drowning risks are directly related to their drowning risk behaviors (5). A previous study found that individuals with a higher drowning risk tended to drown more than those with a low risk of drowning (6). ...
... Mastering water safety knowledge helps adolescents reduce their drowning risk behaviors. Water safety knowledge consists of declarative knowledge about swimming safety and procedural knowledge about swimming rescue, including common sense of water safety, water safety legislative knowledge, and water safety judgments (5). (1) Common sense of water safety refers to a fundamental understanding of water activities, rescues, equipment, and the production of simple floating devices. ...
... (2) Water safety legislative knowledge refers to awareness of the laws and regulations of the water activity area, warning signs, beach flags, etc. (3) Water safety judgments refer to the ability to assess one's own physical condition, weather, and water environment (4). In 2007, The International Lifesaving Federation stated that most drowning episodes can be prevented by understanding water safety and swimming skills (5). In general, a high level of water safety knowledge helps adolescents efficiently identify potential drowning risks. ...
Article
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Introduction Although previous research has examined the risk factors for drowning behavior among adolescents, it is unclear whether this association is influenced by water safety knowledge. This study aimed to examine whether water safety knowledge is associated with adolescents’ drowning risk behaviors and whether drowning risk perceptions and attitudes could have a chain mediating role in the association between water safety knowledge and adolescents’ drowning risk behaviors. Methods This study included 7,485 adolescents from five Chinese provinces and cities. We used the Drowning Risk Behaviors Scales (DRBS) to evaluate the risk of drowning behaviors. The Water Safety Knowledge Scale (WSKS) was used to evaluate the competence level of water safety knowledge. The Drowning Risk Perceptions Scale (DRPS) was used to evaluate the risk level of perceptions, and the Drowning Risk Attitudes Scale (DRAS) was used to evaluate the risk level of attitudes. Results The results of the mediating effect test showed that water safety knowledge (WSK) affected drowning risk behaviors (DRB) through three indirect paths. Drowning risk perceptions (DRP) and attitudes (DRA) have significantly mediated the association between WSK and DRB. In conclusion, DRP and DRA can act as mediators between WSK and DRB, not only individually, but also as chain mediators, where the direct effect is-0.301, the total indirect effect is-0.214, and the total mediated indirect effect is 41.5%. Discussion Water safety knowledge negatively predicts adolescents’ drowning risk behaviors; water safety knowledge has an inhibitory effect on drowning risk perceptions. Water safety knowledge can directly influence adolescents’ drowning risk perceptions and indirectly affect drowning risk behaviors through the mediation of drowning risk perceptions and attitudes comprising three paths: (1) the drowning risk perceptions mediation path, (2) the drowning risk attitudes mediation path, and (3) the drowning risk perceptions and attitudes mediation paths.
... The ability to standardize the quantification of swim skills and water competence will help investigators answer such questions as does it make sense that the victim did not survive in that aquatic environment? This question is important for determining both the cause and manner of death [70,71]. ...
Chapter
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Identifying, investigating, and prosecuting aquatic abuse and murder can be challenging. Aquatic scenes can be large, uncontrollable, and difficult to access. The water can hide, damage, and move corpses and other evidence hundreds of kilometers. Forensic practitioners (FPs) are hindered by a lack of insufficient or unsupported aquatic incident training, equipment, evidence-based best practices, and standards. This results in basic investigation standards being broken on aquatic scenes, and the cause and manner of death are sometimes being misdiagnosed or deemed undetermined. Law Enforcement (LE) agencies do not have the same “aquatic investigator” resources as they do for fire scenes and vehicle and plane crash incidents. There are no standardized certifications for performing aquatic scene investigations or reconstructions. There are solutions that are currently being implemented, and others that need to be initiated. This chapter is an introductory review of some of the more common and global challenges of working aquatic fatal, nonfatal, and evidence cases. A description of several solutions for first responders through jurisprudence is presented along with a call for the forensic community to come together with a multidisciplinary approach to address aquatic incident research needs, evidence-based best practices development, and developing standardized training and certifications.
... The teacher then worked on attitudinal content, with the aim of the student learning to "know how to respect and live together" with norms, postures, values and attitudes, such as, for example, knowing how to respect the rules for using the aquatic environment and the teacher, adopting habits to prevent drowning and, finally, try to internalize something that will last a lifetime. For Stallman et al., (2017) our attitudes affect our behaviors, and it is our real behaviors around aquatic environments that will keep us safe or not; they further add that it is important to instill respect for water from a young age. ...
Article
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Drowning is quick, silent and recognized as a serious public health problem worldwide, but it is neglected. Children and adolescents receive insufficient education about drowning prevention. The objective of this study was to monitor changes in the Drowning Prevention Knowledge Level (DPKL) in elementary school children and adolescents at CAp-UERJ, Rio de Janeiro, Brazil. The methodology was a longitudinal study carried out from 2022 to 2024 with students from the (5th, 6th, 7th, 8th and 9th years) of CAp-UERJ. 12 classes were monitored until 2024, totaling 336 students, four of which were in the 7th year, four in the 8th year and four in the 9th year, with a total of 112 students per year of schooling. A structured questionnaire divided into three parts containing 20 items about DPKL was answered at the school. In the 1st part, students correlated the universal figures used on signs to prevent drowning with the texts that signify those images (7 questions), in the 2nd part they had to relate the colors of the green, yellow and red flags and their meaning in regarding bathing conditions (3 questions) and in the last part, the student marked yes or no on statements related to the correct behavior to be adopted in the aquatic environment (10 questions). Each class received 3 interventions based on the individual DPKL result. When all years of schooling were analyzed together in three moments (2022, 2023 and 2024), the result showed that there was an improvement in knowledge about the 7 prevention signs, to the point that 99.1% of students now knew the meanings of the signs, and in two of them, sign no. yellow and red flags. Regarding the behavior of playing nearby or putting their hand in the drain that sucks water from the pool, the result showed that the youngest were the ones who improved the most after intervention, going from 77.2% to 99.1% of those who responded correctly in 2024; about entering the pool, diving with a "somersault", in a dangerous and inappropriate way, it was found that the older they were, the more aware of the danger caused by headfirst dives. Regarding the DPKL categorization, it was noted that 99% of students were classified as DPKL excellent in 2024. Those in the 8th and 9th years obtained 100% in the classification as DPKL excellent. It can be concluded that the school was a good place to carry out preventive interventions on drowning using an approach focused on behavior change, conceptual identification and student awareness in order to improve DPKL. The diagnostic use of DPKL to monitor school-age students can help identify safety values and concepts in certain regions of the country or specific groups that are not familiar with aquatic environments and thus help to formulate preventive interventions if necessary.
Article
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Experimental game theory explores decisions-making intelligence in simulated laboratory scenarios that engage participants' imagination. However, do choices differ when subjects face real-life situations? and decisions when subjects are exposed to the real life? Hence, the objective of this study was to determine the effect of physical involvement on decision-making. Therefore, this study aimed to assess the impact of physical engagement on decision-making. Fifty-eight athletes competed in a paradoxical motor game, the Alligator Game, conducted underwater in a swimming pool. Depending on whether they broke the surface before or after a line 15 meters from the wall, they won a certain number of points according to a matrix known to them. During the confrontation, the players were either row-players or column-players (depending on their choice in the matrix). Depending on what type of player they've chosen, they had tactics to maximize their number of points won. They could, if they wanted to stay in static apnea (like an alligator), to see the decision taken by their opponents in order to choose the best move. Participants also played this game beforehand in the locker room (what would they do theoretically if they were confronted to this situation?). Statistical analyses of the 174 water confrontations showed that (i) alligator players did not consistently apply the best tactic (Nash's equilibria), (ii) the best players did not play as they had announced in theory. The best free divers maximized their earnings by forcing the decisions of the other players. In conclusion, decisions made were, above all, subordinated by the person's ability to put them into place: "without technique, no tactics".
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