ArticlePDF AvailableLiterature Review

Recommendations for return to sport during the SARS-CoV-2 pandemic

Authors:
  • Deutsche Gesellschaft für Sportmedizin und Prävention (Deutscher Sportärztebund) e.V.

Abstract

In this viewpoint we make specific recommendations that can assist and make the return to sport/exercise as safe as possible for all those impacted – from the recreational athlete to the elite athlete. We acknowledge that there are varying rules and regulations around the world, not to mention the varying philosophies and numerous schools of thought as it relates to return to sport/exercise and we have been cognisant of this in our recommendations. Despite the varying rules and circumstances around the world, we believe it is essential to provide some helpful and consistent guidance for return to training and sport for sport and exercise physicians around the world at this most difficult time. The present viewpoint provides practical and medical recommendations on the resumption to sport process.
LöllgenH, etal. BMJ Open Sp Ex Med 2020;6:e000858. doi:10.1136/bmjsem-2020-000858 1
Open access Viewpoint
Recommendations for return to sport
during the SARS- CoV-2 pandemic
Herbert Löllgen,1 Norbert Bachl,1,2,3,4 Theodora Papadopoulou,1,4,5,6
Andrew Shak,7,8 Graham Holloway,5 Karin Vonbank,9 Nigel Edward Jones,5,10,11
Xavier Bigard,1,4,12 David Niederseer ,13 Joachim Meyer,14
Borja Muniz- Pardos ,15 Andre Debruyne,1,4 Petra Zupet,1,4,16
Jürgen M Steinacker ,1,4,17 Bernd Wolfarth,4,18 James Lee John Bilzon ,4,5,19
Anca Ionescu,1 Michiko Dohi ,4,20 Jeroen Swart ,4,21
Victoriya Badtieva ,4,22,23 Irina Zelenkova,15,22 Maurizio Casasco,1,4,24
Michael Geistlinger,4,25 Luigi Di Luigi ,4,26 Nick Webborn,27,28 Patrick Singleton,29
Mike Miller,29 Fabio Pigozzi,1,4,30,31 Yannis P Pitsiladis 1,4,32
To cite: LöllgenH, BachlN,
PapadopoulouT, etal.
Recommendations for return
to sport during the SARS-
CoV-2 pandemic. BMJ Open
Sport & Exercise Medicine
2020;6:e000858. doi:10.1136/
bmjsem-2020-000858
For numbered afliations see
end of article.
Correspondence to
Dr Yannis P Pitsiladis;
Y. Pitsiladis@ Brighton. ac. uk
© Author(s) (or their
employer(s)) 2020. Re- use
permitted under CC BY- NC. No
commercial re- use. See rights
and permissions. Published by
BMJ.
ABSTRACT
In this viewpoint we make specic recommendations that
can assist and make the return to sport/exercise as safe
as possible for all those impacted – from the recreational
athlete to the elite athlete. We acknowledge that there
are varying rules and regulations around the world, not to
mention the varying philosophies and numerous schools
of thought as it relates to return to sport/exercise and
we have been cognisant of this in our recommendations.
Despite the varying rules and circumstances around the
world, we believe it is essential to provide some helpful
and consistent guidance for return to training and sport
for sport and exercise physicians around the world at
this most difcult time. The present viewpoint provides
practical and medical recommendations on the resumption
to sport process.
BACKGROUND
The COVID-19 pandemic and the restrictive
measures adopted internationally in order to
contain the virus has led to a disruption of
organised sport at all levels. During the lock-
down period, outdoor exercise was forbidden
or partly restricted in some cases without
access to sports facilities including gyms or
sports centres. As the number of infections
and hospitalisations decreased, the strict lock-
down was gradually lifted. Team sports have
commenced reintroducing their training
routines in groups, and the Bundesliga reac-
tivated the professional league behind closed
doors on 16 May 2020 despite serious concerns
raised by some in the scientific community.1
Additional sporting competitions such as
boxing, Ultimate Fighting Championship
and Formula 1 are also scheduled to resume.2
It is worth noting that social distancing is
possible in some sports (eg, tennis, swimming,
athletics and golf) whereas this is not always
possible in other cases (eg, football, rugby,
basketball, cycling and boxing), and careful
measures of hygiene and control are espe-
cially needed for these more at risk sports to
regulate the safety of sport resumption and to
avoid possible infections. For more thorough
information about the risk factors and symp-
toms to be considered to make the return to
sport as safely as possible, consult Carmody
et al3 and Nieß et al.4 The present viewpoint
provides practical and medical recommenda-
tions on the resumption to sport process.
GROUP IDENTIFICATION
During the resumption to sport process, the
following groups must be distinguished (indi-
viduals below refer to both leisure time and
professional athletes or persons starting new
with regular physical activities). This group
classification is a more developed version of
that recently published by Phelan et al.5:
1. Individuals without symptoms and signs
that never have been tested positive for se-
vere acute respiratory syndrome coronavi-
rus 2 (SARS- CoV-2).
2. Individuals with a positive SARS- CoV-2 test
without any COVID-19 symptoms but iso-
lating at home (quarantine) under close
medical observation (telephonic or video).
3. Individuals who experienced COVID-19
with mild symptoms, only needing outpa-
tient treatment and quarantine for 14 days.
4. Individuals with moderate symptoms but
had inpatient treatment due to an in-
creased risk derived from pre- existing con-
ditions (eg, asthma, diabetes).
5. Individuals with severe symptoms, inpa-
tient treatment, including intensive care
without artificial respiration.
copyright. on July 14, 2020 by guest. Protected byhttp://bmjopensem.bmj.com/BMJ Open Sport Exerc Med: first published as 10.1136/bmjsem-2020-000858 on 13 July 2020. Downloaded from
2LöllgenH, etal. BMJ Open Sp Ex Med 2020;6:e000858. doi:10.1136/bmjsem-2020-000858
Open access
6. Individuals with severe symptoms, inpatient treatment
in intensive care and on artificial respiration.
It is imperative that a medical examination is performed
in cooperation with a respiratory physician and/or cardi-
ologist, if suspicious findings of the pulmonary and/or
cardiovascular systems arise.
RECOMMENDATIONS FOR INDIVIDUAL GROUPS
Group 1
In individuals without symptoms and signs of COVID-19
and without any pre- existing medical condition(s), risk
stratification to safely resume to sport has to be evalu-
ated through questionnaires compiling data related to
personal and medical history, close contact with people
with positive SARS- CoV-2 test, or contact with people of
high risk of having been infected without being tested
positive, or in so called hotspots. The individual has to
confirm being free of any symptoms and this must be
documented. Exercise testing is likely to be necessary in
some sports due to the expected detraining after lock-
down,6 and exercise testing must be performed according
to the latest COVID-19/SARS- CoV-2 health and safety
regulations.
Group 2
Resumption after 14 days quarantine. Examinations
ought to include medical history, physical examination,
12- channel ECG, lung function assessment with typical
respiratory signs and symptoms, and ECG stress test.5 7–9
Echocardiography if clinically indicated.
Group 3
Resumption after a quarantine period of 2 weeks and
strict social distancing for another 2 weeks.
A medical examination by a sport and exercise medi-
cine physician with medical history, physical examination,
blood test focused on critical markers (eg, C- reactive
protein, high sensitivity troponin- I, natriuretic peptides),
and resting ECG (eg, changes of Q- wave, ST- stretch,
T- wave).8 Additional lung function assessment and stress
test with ECG, blood gas analysis and spiroergometry as
well as echocardiography are recommended if symptoms
have involved respiratory or cardiac impairment. Return
to regular sport is possible 3–4 weeks after beginning of
the symptoms under medical surveillance for 6 months
after return to sport if any symptoms are present but not
limiting return to sport.
Group 4
Same procedure as for group 3 but including compulsory
ergometry with blood gas analysis and/or spiroergom-
etry.3–5 10 Chest X- ray examination and depending on
the findings obtained during the inpatient stay, high-
resolution CT of the thorax in the most severe cases always
in consultation with a lung specialist. Cardiac examina-
tions depending on medical history, symptoms and signs,
cardio- MRI after consultation with a cardiologist. Return
to sport will vary from 2 to 6 months depending on the
severity of respiratory (lung) and/or cardiac (myocar-
ditis) involvement.
Groups 5 and 6
Following SARS- CoV-2 discharge, rehabilitation is recom-
mended. A complete pulmonary and cardiological
examination is necessary (‘cardiac markers’ such as high
sensitivity troponin- I or natriuretic peptides) including
resting ECG, lung function, echocardiography, stress test
with ECG and blood gas analysis.8 10–13 Return to sport
will be after several months depending on the severity
and completeness of recovery.
Depending on previous findings in heart rate, CT of
the thorax and cardiac MRI examination in consultation
with a respiratory physician and cardiologist, hospital
discharge can take place. A final medical check and
sports statement is mandatory.
Resumption of sport can occur 10–14 days after
complete recovery from SARS CoV-2 infection for
athletes included in groups 1 and 2. In patients with more
severe organ involvement, pneumonia, myocarditis or
neurological signs, an individualised plan is necessary.4 5
Testing for SARS CoV-2 can be carried out to support a
return to play decision but is not essential unless stipu-
lated (eg, National/International Sports Federation,
Government).
CONCLUSIONS
An adequate assessment of the resumption of sporting
activity is based on a case- by- case decision that must
consider the individual situation of the athlete including
pre- existing conditions, the type of sport and the risk
of infection from other athletes (eg, increased risk in
contact/team sports). The recommendation to return to
play will be based on the results of the examination and
individual assessment in consultation with the sport and
exercise medicine physician, specialists in pulmonary
medicine and sport cardiology (or extended multidisci-
plinary team), coaches and training specialists. After a
contact ban, an athlete should be provided with recom-
mendations on sports resumption that are in accordance
with national and regional guidelines. After a longer
period of interruption in sport caused by more severe
health issues, increases in training should be gradual and
individualised by monitoring signs and symptoms of the
health issue.
Author afliations
1European Federation of Sports Medicine Associations (EFSMA), Lausanne,
Switzerland
2Institute of Sports Science, University of Vienna, Vienna, Austria
3Austrian Institute of Sports Medicine, Vienna, Austria
4International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
5British Association of Sport and Exercise Medicine, Doncaster, UK
6Defence Medical Rehabilitation Centre, Loughborough, UK
7South Tyneside NHS Foundation Trust, Sunderland, UK
8Newcastle Thunder Rugby, Newcastle, UK
9Department of Pneumology, Pulmonary Function Laboratory, Medicine Clinic
(KIMII), University of Vienna, Vienna, Austria
10British Cycling, Manchester, UK
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3
LöllgenH, etal. BMJ Open Sp Ex Med 2020;6:e000858. doi:10.1136/bmjsem-2020-000858
Open access
11University of Liverpool, Liverpool, UK
12Union Cycliste Internationale (UCI), Aigle, Switzerland
13Heart Centre, University of Zurich, Zurich, Switzerland
14Lung Center, Clinic Bogenhausen, Munich, Germany
15GENUD (Growth, Exercise, Nutrition and Development), University of Zaragoza,
Zaragoza, Spain
16Institute of Medicine and Sports, Ljubljana, Slovenia
17Division of Sports and Rehabilitation Medicine, Ulm University Hospital, Ulm,
Germany
18Department of Sport Medicine, Humboldt University and Charité University School
of Medicine, Berlin, Deutschland, Germany
19Department for Health, University of Bath, Bath, UK
20Sport Medical Center, Japan Institute of Sports Sciences, Tokyo, Japan
21UCT Research Unit for Exercise Science and Sports Medicine, University of Cape
Town (UCT), Cape Town, South Africa
22I.M. Sechenov First Moscow State Medical University (Sechenov University),
Moscow, Russian Federation
23Moscow Research and Practical Centre for Medical Rehabilitation, Restorative
and Sports Medicine, Moscow Healthcare Department, Moscow, Russian Federation
24Italian Federation of Sports Medicine (FMSI), Rome, Italy
25Unit International Law, Department of Constitutional, International and European
Law, University of Salzburg, Salzburg, Austria
26Unit of Endocrinology, Department of Movement, Human and Health Sciences,
University of Rome “Foro Italico”, Rome, Italy
27School of Sport and Service Management, Eastbourne, UK
28School of Sport, Exercise and Health Sciences, Loughborough University,
Loughborough, UK
29World Olympians Association, Lausanne, Switzerland
30University of Rome “Foro Italico”, Rome, Italy
31FIFA Medical Center of Excellence, Villa Stuart Sport Clinic, Rome, Italy
32Collaborating Centre of Sports Medicine, University of Brighton, Eastbourne, UK
Twitter David Niederseer @DavidNiederseer
Contributors All authors contributed signicantly to merit publication and in
accordance with the BJSM instructions to authors.
Funding The authors have not declared a specic grant for this research from any
funding agency in the public, commercial or not- for- prot sectors.
Competing interests None declared.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; externally peer reviewed.
Open access This is an open access article distributed in accordance with the
Creative Commons Attribution Non Commercial (CC BY- NC 4.0) license, which
permits others to distribute, remix, adapt, build upon this work non- commercially,
and license their derivative works on different terms, provided the original work is
properly cited, appropriate credit is given, any changes made indicated, and the
use is non- commercial. See:http:// creativecommons. org/ licenses/ by- nc/ 4. 0/.
ORCID iDs
DavidNiederseer http:// orcid. org/ 0000- 0003- 3089- 1222
BorjaMuniz- Pardos http:// orcid. org/ 0000- 0002- 9191- 9033
Jürgen MSteinacker http:// orcid. org/ 0000- 0001- 8901- 9450
James Lee JohnBilzon http:// orcid. org/ 0000- 0002- 6701- 7603
MichikoDohi http:// orcid. org/ 0000- 0002- 1126- 7849
JeroenSwart http:// orcid. org/ 0000- 0001- 7098- 0313
VictoriyaBadtieva http:// orcid. org/ 0000- 0003- 4291- 679X
LuigiDi Luigi http:// orcid. org/ 0000- 0002- 2522- 126X
Yannis PPitsiladis http:// orcid. org/ 0000- 0001- 6210- 2449
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... The current recommendation of the Journal of the American Medicine Association for asymptomatic or mild symptomatic patients is to have a minimum of 2 weeks of rest after COVID-19 infection (Phelan et al., 2020). Others suggested that return to exercise should only occur after an asymptomatic period of at least 7 days (Barker-Davies et al., 2020;Lollgen et al., 2020), while the return-to-play guidelines for hospitalized or more severely ill patients are even more cautious (Phelan et al., 2020;Salman et al., 2021). Moreover, physical complications of the COVID-19 infection or anxiety to restart exercise activities may further decrease physical activity levels in COVID-19 patients. ...
... Potentially, athletes could feel anxious to restart exercise after a COVID-19 infection, which could further reduce exercise and sports performance levels. Alternatively, the return to physical activity guidelines and advice from physicians could have lowered exercise levels post-COVID-19 infection (Barker-Davies et al., 2020;Lollgen et al., 2020;Phelan et al., 2020). These guidelines state that an athlete may restart exercise after an asymptomatic period of at least 7 days (Barker-Davies et al., 2020;Lollgen et al., 2020). ...
... Alternatively, the return to physical activity guidelines and advice from physicians could have lowered exercise levels post-COVID-19 infection (Barker-Davies et al., 2020;Lollgen et al., 2020;Phelan et al., 2020). These guidelines state that an athlete may restart exercise after an asymptomatic period of at least 7 days (Barker-Davies et al., 2020;Lollgen et al., 2020). This may have lowered the exercise levels in athletes 1-month post-COVID-19, but less likely explains the lower physical activity level at 3 months post-COVID-19 infection. ...
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We examined the effect of a COVID-19 infection on changes in exercise levels in recreational athletes in the first three months after infection, and identified personal factors associated with a larger change in exercise level and recovery time. Recreational athletes (n=4360) completed an online questionnaire on health and exercise levels. 601 Athletes have had a diagnostically confirmed COVID-19 infection, while 3479 athletes did not (non-COVID-19 group). Exercise levels (in MET-min/week) were examined prior to (2019) and during the COVID-19 pandemic (2020) for the non-COVID-19 group, and in 2019, 1-month pre-COVID-19 infection, 1-month post-COVID-19 infection and 3 months post-COVID-19 infection in the COVID-19 group. Median exercise level at baseline in the COVID-19 group was 3528 (IQR=1488-5760) MET-min/week. One-month post-COVID-19 infection, exercise level dropped 58% (2038 MET-min/week), which partly stabilized to 36% (1256 MET-min/week) below baseline values 3 months post-COVID-19 infection. Moreover, in both the COVID-19 (pre-COVID-19 infection) and non-COVID-19 group exercise levels during the pandemic decreased with ~260 MET-min/week. These results illustrate that even a relatively physically active population of recreational athletes is significantly affected by a COVID-19 infection, particularly those athletes who are overweight. COVID-19 disease burden, age, sex, comorbidities and smoking were not associated with reduced exercise levels.
... Although most competitive athletes have an asymptomatic or mildly symptomatic SARS-CoV-2 infection course and are a low-risk population to develop cardiac and other complications after SARS-CoV-2 infection [8,14], a post-COVID-19 screening strategy primarily based on symptoms should detect cardiac involvement and other complications from SARS-CoV-2 infection and should enable the safe and early return to sports of affected athletes after infection [11,12,[14][15][16]. ...
... Although in most young athletes, an asymptomatic or mildly symptomatic SARS-CoV-2 infection course has been observed, and these patients have to be considered a low-risk population for developing cardiac and other complications after SARS-CoV-2 infection [8,14], a post-COVID-19 screening strategy to enable a safe and early return to sports primarily based on symptoms was implemented in the German sports system to face the fear regarding the development of cardiac involvement and other complications from SARS-CoV-2 infection [11,12,[14][15][16]31]. ...
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The impact of former COVID-19 infection on the performance of athletes is not fully understood. We aimed to identify differences in athletes with and without former COVID-19 infections. Competitive athletes who presented for preparticipation screening between April 2020 and October 2021 were included in this study, stratified for former COVID-19 infection, and compared. Overall, 1200 athletes (mean age 21.9 ± 11.6 years; 34.3% females) were included in this study from April 2020 to October 2021. Among these, 158 (13.1%) athletes previously had COVID-19 infection. Athletes with COVID-19 infection were older (23.4 ± 7.1 vs. 21.7 ± 12.1 years, p < 0.001) and more often of male sex (87.7% vs. 64.0%, p < 0.001). While systolic/diastolic blood pressure at rest was comparable between both groups, maximum systolic (190.0 [170.0/210.0] vs. 180.0 [160.0/205.0] mmHg, p = 0.007) and diastolic blood pressure (70.0 [65.0/75.0] vs. 70.0 [60.0/75.0] mmHg, p = 0.012) during the exercise test and frequency of exercise hypertension (54.2% vs. 37.8%, p < 0.001) were higher in athletes with COVID-19 infection. While former COVID-19 infection was not independently associated with higher blood pressure at rest and maximum blood pressure during exercise, former COVID-19 infection was related to exercise hypertension (OR 2.13 [95%CI 1.39-3.28], p < 0.001). VO2 peak was lower in athletes with compared to those without COVID-19 infection (43.4 [38.3/48.0] vs. 45.3 [39.1/50.6] mL/min/kg, p = 0.010). SARS-CoV-2 infection affected VO2 peak negatively (OR 0.94 [95%CI 0.91-0.97], p < 0.0019). In conclusion, former COVID-19 infection in athletes was accompanied by a higher frequency of exercise hypertension and reduced VO2 peak.
... Data collection took place on the same day as the study inclusion (4.4 ± 4.6 months after infection). Athletes were advised to follow current return to sport guidelines at this time [12,13]. ...
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Introduction Fatigue is a common symptom in post-COVID-19 patients. Individuals with fatigue often perform less well compared to healthy peers or without fatigue. It is not yet clear to what extent fatigue is related to the inability to reach maximum exhaustion during physical exercise. Methods A symptom-based questionnaire based on the Carruthers guidelines (2003) was used for reporting the presence of fatigue and further symptoms related to COVID-19 from 85 participants (60.0% male, 33.5 ± 11.9 years). Cardiopulmonary exercise testing (CPET) and lactate measurement at the end of the test were conducted. Objective and subjective exhaustion criteria according to Wasserman of physically active individuals with fatigue (FS) were compared to those without fatigue (NFS). Results Differences between FS and NFS were found in Peak V̇O 2 /BM ( p < 0.001) and Max Power/BM ( p < 0.001). FS were more likely to suffer from further persistent symptoms ( p < 0.05). The exhaustion criterion Max. lactate was reached significantly more often by NFS individuals. Conclusion Although the aerobic performance (Max Power/BM) and the metabolic rate (Peak V̇O 2 /BM and Max. lactate) of FS were lower compared to NFS, they were equally able to reach objective exhaustion criteria. The decreased number of FS who reached the lactate criteria and the decreased V̇O 2 peak indicates a change in metabolism. Other persistent post-COVID-19 symptoms besides fatigue may also impair performance, trainability and the ability to reach objective exhaustion. Trial registration Trial registration: DRKS00023717; date of registration: 15.06.2021 (retrospectively registered).
... Dette betydde videre at erfaring og utviklede støttestrategier på hvordan man skulle håndtere den nye situasjonen manglet. Under den første fasen av pandemien var en stor del av fokuset på hvordan begrensningene og lockdown påvirket idrettsutøvere og hvordan treningsmuligheter kunne gjenopprettes på en trygg og organisert måte (Löllgen et al., 2020). Senere ble spørsmålene flyttet til å gjelde for eksempel hvordan eliteidrettsutøvere som hadde hatt covid-19 kunne gå tilbake til trening og konkurranse (Elliott et al., 2020), og hvordan konkurranser kunne starte opp igjen og samtidig ta hensyn til smittevern (Löllgen et al., 2021). ...
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... The decision to return to PA after COVID-19 should take into account the duration of the disease, the severity of respiratory or cardiac symptoms (138), as well as the presence of comorbidities, and the capacity and the intensity of the planned exercise (139). In 2022, the Scientific Council of the Deutsche Gesellschaft fur Sportmedizin und Pravention (DGSP) published guidelines for returning to sports after COVID-19 that was addressed to elite athletes (140). ...
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... These results show that sport activities had positive consequences both physically and mentally, as it was revealed during this pandemic, but we must mention that 90% of the participants were affected at physical level and they struggled to adapt to the conditions of the collective preparation at mental level, where 66.8% reported a moderate to very high level of anxiety; the ANOVA test confirming the statistical significance at respondents answer items (Parm, et al., 2021;Fiorilli et al., 2021;Hossain et al., 2020;Löllgen et al., 2020;Tayech et al., 2020;. ...
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The pandemic COVID-19 has globally affected the physical activity behavior, forcing many people to isolate themselves for a long period of time. These actions caused and increased sedentary behaviors such as excessive sitting or using mobile devices. The lockdown and sedentary behavior have affected the health status and decreased the physical fitness, weakening one’s body and inducing a low immunological response. The aim of the study was to determine how elite handball players were affected at physical and mental during the restrictions imposed by the spreading of the SARS - CoV - 2 virus. A questionnaire-based survey was used to conduct the study. For the questionnaire design we used Likert style with three or five level items. The participants voluntarily consented to anonymously participate in our study before completing the questionnaire. The participants were informed that the data would be used only for scientific purpose. The results of our study suggest that pandemic negatively influenced the sport preparation of the handball players due the fact that subjects trained themselves for a period of over 2 months and that meant a reduction of the physical activity (influencing the physical fitness level) to half comparing to a collective preparation for competition. At mental level more than 2/3 felt an increased level of anxiety due to the pandemic, the way that their life was changed and worries concerning their personal and professional future. This period of incertitude had a negative impact at mental level confirming our hypothesis.
... To be able to provide information on how performance develops over time, long-term monitoring is necessary. Recent published studies and recommendations also state the need for long time monitoring [21,40,41]. Studies with long-term monitoring and repeated examinations of patients and athletes are rare. ...
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