Angus Burnett

Aspetar - Qatar Orthopaedic and Sports Medicine Hospital | aspetar · CMO Office

The aim of this study was to examine performance in hopping tests in male athletes after anterior cruciate ligament reconstruction (ACLR) in the 4-to-6 months post-surgery period. A total of 36 athletes (24 ACLR and 12 controls) participated in this study. The ACLR group consisted of athletes who had undergone an ACLR on their dominant side (ACL DG...

Push-ups represent one of the simplest and most popular strengthening exercise. The aim of this study was to systematically review and critically appraise the literature on the kinetics-related characteristics of different types of push-ups, with the objective of optimising training prescription and exercise-related load. A systematic search was co...

Hamstring injuries remain a significant burden in sports that involve high-speed running. In elite male football, hamstring injury has repeatedly been identified as the most common non-contact injury, representing 12% of all injuries. As the incidence remains high, investigations are aimed at better understanding how to improve prevention efforts....

Little is known about the reliability, validity and smallest detectable differences of selected kinetic and temporal variables recorded by the Zebris FDM-THQ instrumented treadmill especially during running. Twenty male participants (age = 31.9 years (±5.6), height = 1.81 m (±0.08), mass = 80.2 kg (±9.5), body mass index = 24.53 kg/m2 (±2.53)) walk...

Objectives: To determine the characteristics and effectiveness of motor skill interventions in children with developmental coordination disorder (DCD) and to identify potential moderators of training effects using meta-analysis. Data sources: A search was conducted in six databases (CINAHL Plus, Cochrane Library, Embase, Eric, PsycInfo, and PubM...

Background Hamstring injuries remain prevalent across a number of professional sports. In football, the incidence has even increased by 4% per year at the Champions League level over the last decade. The role of muscle strength or strength ratios and their association with risk of hamstring injury remain restricted by small sample sizes and inconcl...

Introduction The objectives of this review were to: 1) determine the magnitude of the effect of motor skill interventions for improving motor competence and other secondary outcomes in children with developmental coordination disorder (DCD) and 2) identify potential moderating variables that influence the effectiveness of such interventions. Meth...

Introduction: Children with developmental coordination disorder (DCD) present with poor motor coordination that interferes with their daily activities. Children with DCD have been found to be less physically active than their typically developing peers. Self-perceived physical competence (SPC) is considered a potential correlate of physical activit...

Background: The ability to change direction is considered of paramount importance in team sports. Currently there is a lack of consensus regarding the most important physical factors that determine change of direction (COD) ability. Therefore, the aim of this study was to examine the relationship strength and explosive power. Methods: 31 young e...

Purpose: This study examined differences between ground reaction force (GRF)-based parameters collected from five types of plyometric push-ups. Between-trial reliability and the relationships between parameters were also assessed. Methods: Thirty-seven highly active commando soldiers performed three trials of five variations of the plyometric pu...

This study examined differences between ground reaction force (GRF)-based parameters associated with five types of plyometric push-ups. Further, between-trial reliability was assessed. The present data indicate that there is a variety of differences in kinetic parameters between the selected upper-limbs plyometric exercises studied. The intensity o...

The purpose of this study was to examine the effects of fundamental movement skills (FMS) training on FMS proficiency, self-perceived physical competence (SPC), physical activity (PA), and sleep disturbance in children with developmental coordination disorder (DCD) compared with children with typical development (TD). A total of 84 children were al...

The use of multi-segment trunk models to investigate the crunch factor in golf may be warranted. The first aim of the study was to investigate the relationship between the trunk and lower trunk for crunch factor related variables (trunk lateral bending and trunk axial rotation velocity). The second aim was to determine the level of association betw...

Background: It is unknown whether questionnaires measuring psychosocial constructs related to LBP that were originally designed for adults are suitable for adolescents, and if paper and web-versions have similar measurement properties. Objectives: To examine selected psychometric properties for the paper- and web-based Back-Beliefs Questionnaire...

Purpose: The purpose of this study was to (1) examine differences in fundamental movement skills (FMS) proficiency, physical self-concept, and physical activity in children with and without developmental coordination disorder (DCD), and (2) determine the association of FMS proficiency with physical self-concept while considering key confounding fac...

There is a high prevalence of low back pain (LBP) in adolescent male rowers. In this study, regional lumbar spinal kinematics and self-reported LBP intensity were compared between 10 adolescent rowers with moderate levels of LBP relating to rowing with 10 reporting no history of LBP during a 15-minute ergometer trial using an electromagnetic tracki...

Background: Altered movement patterns with pain have been demonstrated in children, adolescents and adults with chronic disabling low back pain (CDLBP). A previously developed classification system has identified different subgroups including active extension and multidirectional patterns in patients with CDLBP. While familial associations have be...

It is unknown whether skilled golfers will modify their kinematics when using drivers of different shaft properties. This study aimed to firstly, determine if golf swing kinematics and swing parameters and related launch conditions differed when using modified drivers, then secondly, determine which kinematics were associated with clubhead speed. T...

Beliefs held about low back pain (LBP) can influence treatment outcomes and the development of LBP-related disability. Beliefs are shaped by cultural norms but few cross-cultural studies have been done. This cross-sectional study investigated the back pain beliefs and their associations with disability in 109 Chinese nurses and 165 Australian Cauca...

Background Low back pain (LBP) is prevalent among adolescent rowers. This study evaluated the efficacy of a cognitive functional approach to reduce LBP in this population. Methods Thirty-six adolescent male rowers reporting LBP participated. Nineteen were randomly allocated to the intervention group to receive a cognitive functional approach target...

This study examined measurement properties of the Loughborough Soccer Passing Test (LSPT) in two groups of Under 13 players (a competitive group and a recreational group; n=26 in each) and a group of competitive Under 19 players (n=25). Participants completed the LSPT twice on a single day then repeated the protocol one week later. Significant diff...

The KIDSCREEN questionnaire assesses health-related quality of life in children and adolescents. In this study, the questionnaire was translated into Chinese (Cantonese) and administered to two independent groups of Hong Kong Chinese students. Various aspects of reliability and validity of the KIDSCREEN-52 and KIDSCREEN-27 questionnaires were exami...

This study sought to determine the level of association between bilateral force production symmetry assessment methods (standing weight distribution (WtD), unloaded and lightly loaded jumps, and isometric strength) as well as to determine if the amount of symmetry carry-over between these tasks differs for strong and weak athletes. Subjects for thi...

Physical activity in children and adolescents is on a decline trend. To this end, we conducted a matched-pair randomized controlled trial to examine the effects of a 4-week STAR (School-based; Train-the-trainer; Accessibility of resources; Recreational) skipping programme. 1,386 schoolchildren from 20 primary and secondary schools were recruited. S...

The purpose of this study was to determine the role of kinetic asymmetry on center of mass displacement in both mediolateral (COMd ML) and anteroposterior directions (COMd AP). Seventeen collegiate baseball players underwent weight distribution (WtD), and unloaded and loaded static (SJ) and countermovement jumps (CMJ). Concurrent kinetic and kinema...

Development of a standardised system for the assessment of suspected illegal bowling action in cricket. Andrea G Cutti1 Craig Ranson2 Angus Burnett3 Ben Leaver4 1 Consultant to International Cricket Council 2 Sports injury Research Group, Cardiff Metropolitan University, Cardiff, United Kingdom 3 Aspetar, Qatar Orthopaedic and Sports Medicine Hos...

Bailey, CA, Sato, K, Burnett, A, and Stone, MH. Carry-over of force production symmetry in athletes of differing strength levels. J Strength Cond Res 29(11): 3188–3196, 2015—This study sought to determine the level of association between bilateral force production symmetry assessment methods (standing weight distribution [WtD], unloaded and lightly...

The purpose of this investigation was to determine the existence of bilateral strength and force production asymmetry and evaluate possible differences based on sex as well as strength level. Asymmetry was assessed during weight distribution (WtD) testing, unloaded and lightly loaded static (SJ) and countermovement jump (CMJ) testing, and isometric...

Background Low back pain (LBP) is the leading cause of disability worldwide. Evidence pointing towards a more efficacious model of care using a biopsychosocial approach for LBP management highlights the need to understand the pain-related beliefs of patients and those who treat them. The beliefs held by healthcare professionals (HCPs) are known to...

Regular physical activity (PA) contributes to the development of physical and psychological well-being in children. The mastery of motor skills is considered one of the potential factors that facilitate PA engagement. Fundamental movement skills (FMS) are foundations for developing context-specific movements. Children with developmental coordinatio...

Despite a recent increase in the amount of research investigating performance in golf, a comprehensive putting skills test has not been reported in the peer-reviewed literature. In this study the Golf Australia Putting Test (GAPT) was developed and a series of measurement properties were assessed. Elite (n = 18) and high-level amateur (n = 22) part...

The primary objective of this study was to determine the lifetime and point prevalence of low back pain, the related pain intensity and the rowing-related aggravating factors for low back pain in adolescent rowers who participated in school-level competitions. The secondary objective was to determine whether between-gender differences existed in th...

Abstract The aim of this study was to investigate the convergent and predictive validity of two skill tests that examine the ability of golfers to hit accurate approach-iron shots. Twenty-four high-level golfers (handicap = 2.6 ± 1.7) performed the Nine-Ball Skills Test (assesses the ability to shape/control ball trajectory with high accuracy) and...

In golf, many parameters of the driver can be modified to maximise hitting distance. The main objective of this study was to determine whether drivers fitted with shafts having high and low kick points would alter selected swing parameters and related launch conditions. In total, 12 elite male golfers (handicap score = 1.2 ± 1.8) had three shots an...

A high level of participant skill is influential in determining the outcome of many sports. Thus, tests assessing skill outcomes in sport are commonly used by coaches and researchers to estimate an athlete's ability level, to evaluate the effectiveness of interventions or for the purpose of talent identification. The objective of this systematic re...

Abstract The primary aim of this study was to develop and validate a golf-specific approach-iron test for use with elite and high-level amateur golfers. Elite (n=26) and high-level amateur (n=23) golfers were recruited for this study. The 'Approach-Iron Skill Test' requires players to hit a total of 27 shots. Specifically, three shots are hit at ea...

Sit-to-stand (STS) is a functional dynamic task, requiring movement of the lumbar spine, however, little is known about whether regional differences or between-gender differences exist during this task. The aim of this study was to confirm whether kinematic differences existed within regions of the lumbar spine during STS and also to determine whet...

Cervical spine injuries in Rugby Union are a concerning issue at all levels of the game. The primary aim of this retrospective analysis conducted in a professional Rugby Union squad was to determine whether a 26-week isometric neck strengthening intervention program (13-week strengthening phase and 13- week maintenance phase) was effective in reduc...

Study design: Case report. Background: Contemporary low back pain models propose that the experience of and responses to pain result from a complex interaction of biopsychosocial factors. This supports the need for a management approach that addresses the biological, psychological, and social components that may be related to the pain disorder....

The aims of this study were (i) to determine whether significant three-dimensional (3D) trunk kinematic differences existed between a driver and a five-iron during a golf swing; and (ii) to determine the anthropometric, physiological, and trunk kinematic variables associated with clubhead speed. Trunk range of motion and golf swing kinematic data w...

This study examined the appropriateness of self-report (predicted) data obtained from high-level golfers in tournament play. Twenty-one high-level golfers (mean ± s, handicap = +2.8 ± 1.8) completed one round of 18 holes. For approach-shots to the green on par 4 and 5 holes, three measurements were predicted by each player; a) Distance to Hole, b)...

The trunk and pelvis kinematics of 20 healthy male and female adolescent rowers were recorded during an ergometer trial using an electromagnetic tracking system (Fastrak). The kinematics of each drive phase were collected during the 1st and 20th minute, respectively. The mean and range of the kinematics, stroke rate and stroke length were compared...

Objective: To identify differences in repositioning error in adolescents with and without non-specific chronic low back pain (NSCLBP), sub-groups of NSCLBP and in different spinal regions. Methods: Spinal repositioning error was measured during a seated task. Variables were constant error (CE), absolute error (AE) and variable error (VE) for low...

Sit-to-stand (STS) is a functional dynamic task, requiring movement of the lumbar spine, however, little is known about whether regional differences or between-gender differences exist during this task. The aim of this study was to confirm whether kinematic differences existed within regions of the lumbar spine during STS and also to determine whet...

No method currently exists to determine the location of the kick point during the golf swing. This study consisted of two phases. In the first phase, the static kick point of 10 drivers (having identical grip and head but fitted with shafts of differing mass and stiffness) was determined by two methods; 1) a visual method used by professional club...

Chronic low back pain (CLBP) experienced in middle-age may have important implications for vertebral bone health, although this issue has not been investigated as a primary aim previously. This study investigated the associations between CLBP and dual energy X-ray absorptiometry (DXA)-derived vertebral bone mineral measures acquired from postero-an...

Currently, there is a lack of appropriate skill assessments available for use in golf. The aim of this study was to examine the discriminative validity and the test-retest reliability of the newly developed "Nine-Ball Skills Test". Participants of two ability levels (elite, n = 14; high-level amateur, n = 16) each hit nine golf shots of differing c...

Manufacturers of uncoupled cycling cranks claim that their use will increase economy of motion and gross efficiency. Purportedly, this occurs by altering the muscle-recruitment patterns contributing to the resistive forces occurring during the recovery phase of the pedal stroke. Uncoupled cranks use an independent-clutch design by which each leg cy...

Although strength and conditioning exercises have been prescribed to enhance performance and prevent injury in sailors, little is known about these exercises in comparison to the demands placed on the sailor's musculature while hiking maximally. Because of the difficulty in collecting hiking-related data on water, a 3-minute maximal hiking test (HM...

Observational cross-sectional study. To perform a psychometric evaluation of Simplified Chinese versions of back pain beliefs questionnaires for use in health care professionals living in mainland China. Back pain beliefs are of importance in the development of chronic low back pain (LBP) and disability. Different types of beliefs exist with regard...

Despite the large volume of research dedicated to understanding chronic low back pain (CLBP), patient outcomes remain modest while healthcare costs continue to rise, creating a major public health burden. Health literacy - the ability to seek, understand and utilise health information - has been identified as an important factor in the course of ot...

Cross-sectional investigation. To explore the relationship between back muscle endurance (BME) and a range of familial, physical, lifestyle, and psychosocial variables in adolescents and young adults. There is evidence that low back pain interventions which focus on improved BME are effective. However, the mechanisms associated with BME performance...

The primary aim of this study was to examine familial associations in spinal posture, defined using postural angles and a clinical classification method. A secondary aim was to investigate the reliability of clinical postural classification. Postural angles were calculated from sagittal photographs, while two experienced clinicians made use of stan...

The spinopelvic kinematics of sweep and scull have yet to be investigated, despite evidence suggesting that sweep rowing may be provocative for low back pain (LBP). The aim of this study was to determine whether differences existed in spinopelvic kinematics in high-level rowers without LBP in sweep and scull ergometer rowing. Repeated measures stud...

The aim of this study was to determine whether a multi-dimensional intervention programme was effective in reducing the incidence of low back pain (LBP) and the associated levels of pain and disability in schoolgirl rowers. This non-randomised controlled trial involved an intervention (INT) group consisting of 90 schoolgirl rowers from one school a...

In our study, the aims were to describe the changes in the appearance of the lumbar spine on MRI in elite fast bowlers during a follow-up period of one year, and to determine whether these could be used to predict the presence of a stress fracture of the posterior elements. We recruited 28 elite fast bowlers with a mean age of 19 years (16 to 24) w...

It is believed that increasing the X-factor (movement of the shoulders relative to the hips) during the golf swing can increase ball velocity at impact. Increasing the X-factor may also increase the risk of low back pain. The aim of this study was to provide recommendations for the three-dimensional (3D) measurement of the X-factor and lower trunk...

Health literacy, the ability to seek, understand and utilise health information, is important for good health. Suboptimal health literacy has been associated with poorer health outcomes in many chronic conditions although this has not been studied in chronic low back pain (CLBP). We examined the health literacy of individuals with CLBP using a mixe...

Prevention of occupational low back pain (LBP) in nurses is a research priority. Recent research suggests intervening before commencing nursing employment is ideal; however, identification of modifiable risk factors is required. The objective of this study was to investigate modifiable personal characteristics that predicted new-onset LBP in nursin...

A preliminary cross-sectional comparative study of adolescents with nonspecific chronic low back pain (NSCLBP) and healthy controls. To investigate whether differences in spinal kinematic and trunk muscle activity exist in both usual and slump sitting in adolescents with NSCLBP. Evidence suggests that low back pain commonly develops in adolescence...

The purpose of this study was to examine the influence of environmental temperature on power output, muscle activation, body temperature, and perceived physical strain during a dynamic self-paced 100-km cycling trial. Nine endurance-trained male cyclists (mean + or - s: age 31 + or - 6 years; VO(2max) 62.1 + or - 8.5 ml x kg(-1) x min(-1)) complete...

Fast bowling in cricket is an activity that is well recognised as having high injury prevalence and there has been debate regarding the most effective fast bowling technique. The aim of this study was to determine whether two-year coaching interventions conducted in a group of elite young fast bowlers resulted in fast bowling technique alteration....

The aim of the study was to determine the accuracy and variability of an electromagnetic device in measuring spinal kinematics on a traditional and replica rowing ergometer. Kinematic data collected from the 3-Space Fastrak system using a Standard Concept II ergometer were compared with a replica ergometer that was in part, composed of non-ferrous...

Statistical Classification Model for nonspecific chronic low back pain (NS-CLBP) patients and controls based on parameters of motor control. Develop a Statistical Classification Model to discriminate between 2 subgroups of NS-CLBP (Flexion Pattern [FP] and Active Extension Pattern [AEP]) and a control group using biomechanical variables quantifying...

To date the influence that specific sitting posture has on the head/neck posture and cervico-thoracic muscle activity has been insufficiently investigated. Therefore the aim of this study was to investigate whether three different thoraco-lumbar sitting postures affect head/neck posture and cervico-thoracic muscle activity. Twenty (10 men, 10 women...

Background: Occupational low back pain is a significant problem among nurses. Recent literature suggests current occupational preventative strategies for nurses have not been effective. Given low back pain is already prevalent before commencing employment, nursing students should be the target of preventative interventions. Modifiable personal fac...

Low back pain (LBP) is one of the most costly conditions to manage in occupational health. Individuals with chronic or recurring LBP experience difficulties returning to work due to disability. Given the personal and financial cost of LBP, there is a need for effective interventions aimed at preventing LBP in the workplace. The aim of this systemat...

Head and neck posture is an important factor in neck pain related to computer use; however, the evidence for an optimal posture is unconvincing. This study measured the 3-D postures of 36 young adults during use of three different display heights. Cervical extensor muscle strain was estimated using modelled gravitational load moments and muscle cap...

To determine if country (Australia, Taiwan, Singapore), undergraduate healthcare course (physiotherapy, nursing), low back pain (LBP) history, and year of course influenced various back pain beliefs in undergraduate female healthcare students. Three hundred and 82 female undergraduate nursing and physiotherapy students completed questionnaires exam...

Spinal posture is commonly a focus in the assessment and clinical management of low back pain (LBP) patients. However, the link between spinal posture and LBP is not fully understood. Recent evidence suggests that considering regional, rather than total lumbar spine posture is important. The purpose of this study was to determine; if there are regi...

Sports such as rowing, gymnastics, cycling and fast bowling in cricket that combine rotation with spine flexion and extension are known to carry greater risk of low back pain (LBP). Few studies have investigated the capacity of the lumbar spine to rotate in various sagittal positions, and further, these studies have generated disparate conclusions....