COVID-19 Lockdown: A Global Study Investigating the Effect of Athletes’ Sport Classification and Sex on Training Practices

in International Journal of Sports Physiology and Performance

Click name to view affiliation

Jad Adrian Washif
Search for other papers by Jad Adrian Washif in
Current site
Google Scholar
PubMed
Close
,
Øyvind Sandbakk
Search for other papers by Øyvind Sandbakk in
Current site
Google Scholar
PubMed
Close
,
Stephen Seiler
Search for other papers by Stephen Seiler in
Current site
Google Scholar
PubMed
Close
,
Thomas Haugen
Search for other papers by Thomas Haugen in
Current site
Google Scholar
PubMed
Close
,
Abdulaziz Farooq
Search for other papers by Abdulaziz Farooq in
Current site
Google Scholar
PubMed
Close
,
Ken Quarrie
Search for other papers by Ken Quarrie in
Current site
Google Scholar
PubMed
Close
,
Dina C. Janse van Rensburg
Search for other papers by Dina C. Janse van Rensburg in
Current site
Google Scholar
PubMed
Close
,
Isabel Krug
Search for other papers by Isabel Krug in
Current site
Google Scholar
PubMed
Close
,
Evert Verhagen
Search for other papers by Evert Verhagen in
Current site
Google Scholar
PubMed
Close
,
Del P. Wong
Search for other papers by Del P. Wong in
Current site
Google Scholar
PubMed
Close
,
Iñigo Mujika
Search for other papers by Iñigo Mujika in
Current site
Google Scholar
PubMed
Close
,
Cristina Cortis
Search for other papers by Cristina Cortis in
Current site
Google Scholar
PubMed
Close
,
Monoem Haddad
Search for other papers by Monoem Haddad in
Current site
Google Scholar
PubMed
Close
,
Omid Ahmadian
Search for other papers by Omid Ahmadian in
Current site
Google Scholar
PubMed
Close
,
Mahmood Al Jufaili
Search for other papers by Mahmood Al Jufaili in
Current site
Google Scholar
PubMed
Close
,
Ramzi A. Al-Horani
Search for other papers by Ramzi A. Al-Horani in
Current site
Google Scholar
PubMed
Close
,
Abdulla Saeed Al-Mohannadi
Search for other papers by Abdulla Saeed Al-Mohannadi in
Current site
Google Scholar
PubMed
Close
,
Asma Aloui
Search for other papers by Asma Aloui in
Current site
Google Scholar
PubMed
Close
,
Achraf Ammar
Search for other papers by Achraf Ammar in
Current site
Google Scholar
PubMed
Close
,
Fitim Arifi
Search for other papers by Fitim Arifi in
Current site
Google Scholar
PubMed
Close
,
Abdul Rashid Aziz
Search for other papers by Abdul Rashid Aziz in
Current site
Google Scholar
PubMed
Close
,
Mikhail Batuev
Search for other papers by Mikhail Batuev in
Current site
Google Scholar
PubMed
Close
,
Christopher Martyn Beaven
Search for other papers by Christopher Martyn Beaven in
Current site
Google Scholar
PubMed
Close
,
Ralph Beneke
Search for other papers by Ralph Beneke in
Current site
Google Scholar
PubMed
Close
,
Arben Bici
Search for other papers by Arben Bici in
Current site
Google Scholar
PubMed
Close
,
Pallawi Bishnoi
Search for other papers by Pallawi Bishnoi in
Current site
Google Scholar
PubMed
Close
,
Lone Bogwasi
Search for other papers by Lone Bogwasi in
Current site
Google Scholar
PubMed
Close
,
Daniel Bok
Search for other papers by Daniel Bok in
Current site
Google Scholar
PubMed
Close
,
Omar Boukhris
Search for other papers by Omar Boukhris in
Current site
Google Scholar
PubMed
Close
,
Daniel Boullosa
Search for other papers by Daniel Boullosa in
Current site
Google Scholar
PubMed
Close
,
Nicola Bragazzi
Search for other papers by Nicola Bragazzi in
Current site
Google Scholar
PubMed
Close
,
Joao Brito
Search for other papers by Joao Brito in
Current site
Google Scholar
PubMed
Close
,
Roxana Paola Palacios Cartagena
Search for other papers by Roxana Paola Palacios Cartagena in
Current site
Google Scholar
PubMed
Close
,
Anis Chaouachi
Search for other papers by Anis Chaouachi in
Current site
Google Scholar
PubMed
Close
,
Stephen S. Cheung
Search for other papers by Stephen S. Cheung in
Current site
Google Scholar
PubMed
Close
,
Hamdi Chtourou
Search for other papers by Hamdi Chtourou in
Current site
Google Scholar
PubMed
Close
,
Germina Cosma
Search for other papers by Germina Cosma in
Current site
Google Scholar
PubMed
Close
,
Tadej Debevec
Search for other papers by Tadej Debevec in
Current site
Google Scholar
PubMed
Close
,
Matthew D. DeLang
Search for other papers by Matthew D. DeLang in
Current site
Google Scholar
PubMed
Close
,
Alexandre Dellal
Search for other papers by Alexandre Dellal in
Current site
Google Scholar
PubMed
Close
,
Gürhan Dönmez
Search for other papers by Gürhan Dönmez in
Current site
Google Scholar
PubMed
Close
,
Tarak Driss
Search for other papers by Tarak Driss in
Current site
Google Scholar
PubMed
Close
,
Juan David Peña Duque
Search for other papers by Juan David Peña Duque in
Current site
Google Scholar
PubMed
Close
,
Cristiano Eirale
Search for other papers by Cristiano Eirale in
Current site
Google Scholar
PubMed
Close
,
Mohamed Elloumi
Search for other papers by Mohamed Elloumi in
Current site
Google Scholar
PubMed
Close
,
Carl Foster
Search for other papers by Carl Foster in
Current site
Google Scholar
PubMed
Close
,
Emerson Franchini
Search for other papers by Emerson Franchini in
Current site
Google Scholar
PubMed
Close
,
Andrea Fusco
Search for other papers by Andrea Fusco in
Current site
Google Scholar
PubMed
Close
,
Olivier Galy
Search for other papers by Olivier Galy in
Current site
Google Scholar
PubMed
Close
,
Paul B. Gastin
Search for other papers by Paul B. Gastin in
Current site
Google Scholar
PubMed
Close
,
Nicholas Gill
Search for other papers by Nicholas Gill in
Current site
Google Scholar
PubMed
Close
,
Olivier Girard
Search for other papers by Olivier Girard in
Current site
Google Scholar
PubMed
Close
,
Cvita Gregov
Search for other papers by Cvita Gregov in
Current site
Google Scholar
PubMed
Close
,
Shona Halson
Search for other papers by Shona Halson in
Current site
Google Scholar
PubMed
Close
,
Omar Hammouda
Search for other papers by Omar Hammouda in
Current site
Google Scholar
PubMed
Close
,
Ivana Hanzlíková
Search for other papers by Ivana Hanzlíková in
Current site
Google Scholar
PubMed
Close
,
Bahar Hassanmirzaei
Search for other papers by Bahar Hassanmirzaei in
Current site
Google Scholar
PubMed
Close
,
Kim Hébert-Losier
Search for other papers by Kim Hébert-Losier in
Current site
Google Scholar
PubMed
Close
,
Hussein Muñoz Helú
Search for other papers by Hussein Muñoz Helú in
Current site
Google Scholar
PubMed
Close
,
Tomás Herrera-Valenzuela
Search for other papers by Tomás Herrera-Valenzuela in
Current site
Google Scholar
PubMed
Close
,
Florentina J. Hettinga
Search for other papers by Florentina J. Hettinga in
Current site
Google Scholar
PubMed
Close
,
Louis Holtzhausen
Search for other papers by Louis Holtzhausen in
Current site
Google Scholar
PubMed
Close
,
Olivier Hue
Search for other papers by Olivier Hue in
Current site
Google Scholar
PubMed
Close
,
Antonio Dello Iacono
Search for other papers by Antonio Dello Iacono in
Current site
Google Scholar
PubMed
Close
,
Johanna K. Ihalainen
Search for other papers by Johanna K. Ihalainen in
Current site
Google Scholar
PubMed
Close
,
Carl James
Search for other papers by Carl James in
Current site
Google Scholar
PubMed
Close
,
Saju Joseph
Search for other papers by Saju Joseph in
Current site
Google Scholar
PubMed
Close
,
Karim Kamoun
Search for other papers by Karim Kamoun in
Current site
Google Scholar
PubMed
Close
,
Mehdi Khaled
Search for other papers by Mehdi Khaled in
Current site
Google Scholar
PubMed
Close
,
Karim Khalladi
Search for other papers by Karim Khalladi in
Current site
Google Scholar
PubMed
Close
,
Kwang Joon Kim
Search for other papers by Kwang Joon Kim in
Current site
Google Scholar
PubMed
Close
,
Lian-Yee Kok
Search for other papers by Lian-Yee Kok in
Current site
Google Scholar
PubMed
Close
,
Lewis MacMillan
Search for other papers by Lewis MacMillan in
Current site
Google Scholar
PubMed
Close
,
Leonardo Jose Mataruna-Dos-Santos
Search for other papers by Leonardo Jose Mataruna-Dos-Santos in
Current site
Google Scholar
PubMed
Close
,
Ryo Matsunaga
Search for other papers by Ryo Matsunaga in
Current site
Google Scholar
PubMed
Close
,
Shpresa Memishi
Search for other papers by Shpresa Memishi in
Current site
Google Scholar
PubMed
Close
,
Grégoire P. Millet
Search for other papers by Grégoire P. Millet in
Current site
Google Scholar
PubMed
Close
,
Imen Moussa-Chamari
Search for other papers by Imen Moussa-Chamari in
Current site
Google Scholar
PubMed
Close
,
Danladi Ibrahim Musa
Search for other papers by Danladi Ibrahim Musa in
Current site
Google Scholar
PubMed
Close
,
Hoang Minh Thuan Nguyen
Search for other papers by Hoang Minh Thuan Nguyen in
Current site
Google Scholar
PubMed
Close
,
Pantelis T. Nikolaidis
Search for other papers by Pantelis T. Nikolaidis in
Current site
Google Scholar
PubMed
Close
,
Adam Owen
Search for other papers by Adam Owen in
Current site
Google Scholar
PubMed
Close
,
Johnny Padulo
Search for other papers by Johnny Padulo in
Current site
Google Scholar
PubMed
Close
,
Jeffrey Cabayan Pagaduan
Search for other papers by Jeffrey Cabayan Pagaduan in
Current site
Google Scholar
PubMed
Close
,
Nirmala Panagodage Perera
Search for other papers by Nirmala Panagodage Perera in
Current site
Google Scholar
PubMed
Close
,
Jorge Pérez-Gómez
Search for other papers by Jorge Pérez-Gómez in
Current site
Google Scholar
PubMed
Close
,
Lervasen Pillay
Search for other papers by Lervasen Pillay in
Current site
Google Scholar
PubMed
Close
,
Arporn Popa
Search for other papers by Arporn Popa in
Current site
Google Scholar
PubMed
Close
,
Avishkar Pudasaini
Search for other papers by Avishkar Pudasaini in
Current site
Google Scholar
PubMed
Close
,
Alizera Rabbani
Search for other papers by Alizera Rabbani in
Current site
Google Scholar
PubMed
Close
,
Tandiyo Rahayu
Search for other papers by Tandiyo Rahayu in
Current site
Google Scholar
PubMed
Close
,
Mohamed Romdhani
Search for other papers by Mohamed Romdhani in
Current site
Google Scholar
PubMed
Close
,
Paul Salamh
Search for other papers by Paul Salamh in
Current site
Google Scholar
PubMed
Close
,
Abu-Sufian Sarkar
Search for other papers by Abu-Sufian Sarkar in
Current site
Google Scholar
PubMed
Close
,
Andy Schillinger
Search for other papers by Andy Schillinger in
Current site
Google Scholar
PubMed
Close
,
Heny Setyawati
Search for other papers by Heny Setyawati in
Current site
Google Scholar
PubMed
Close
,
Navina Shrestha
Search for other papers by Navina Shrestha in
Current site
Google Scholar
PubMed
Close
,
Fatona Suraya
Search for other papers by Fatona Suraya in
Current site
Google Scholar
PubMed
Close
,
Montassar Tabben
Search for other papers by Montassar Tabben in
Current site
Google Scholar
PubMed
Close
,
Khaled Trabelsi
Search for other papers by Khaled Trabelsi in
Current site
Google Scholar
PubMed
Close
,
Axel Urhausen
Search for other papers by Axel Urhausen in
Current site
Google Scholar
PubMed
Close
,
Maarit Valtonen
Search for other papers by Maarit Valtonen in
Current site
Google Scholar
PubMed
Close
,
Johanna Weber
Search for other papers by Johanna Weber in
Current site
Google Scholar
PubMed
Close
,
Rodney Whiteley
Search for other papers by Rodney Whiteley in
Current site
Google Scholar
PubMed
Close
,
Adel Zrane
Search for other papers by Adel Zrane in
Current site
Google Scholar
PubMed
Close
,
Yacine Zerguini
Search for other papers by Yacine Zerguini in
Current site
Google Scholar
PubMed
Close
,
Piotr Zmijewski
Search for other papers by Piotr Zmijewski in
Current site
Google Scholar
PubMed
Close
,
Helmi Ben Saad
Search for other papers by Helmi Ben Saad in
Current site
Google Scholar
PubMed
Close
,
David B. Pyne
Search for other papers by David B. Pyne in
Current site
Google Scholar
PubMed
Close
,
Lee Taylor
Search for other papers by Lee Taylor in
Current site
Google Scholar
PubMed
Close
, and
Karim Chamari
Search for other papers by Karim Chamari in
Current site
Google Scholar
PubMed
Close
Restricted access

Purpose: To investigate differences in athletes’ knowledge, beliefs, and training practices during COVID-19 lockdowns with reference to sport classification and sex. This work extends an initial descriptive evaluation focusing on athlete classification. Methods: Athletes (12,526; 66% male; 142 countries) completed an online survey (May–July 2020) assessing knowledge, beliefs, and practices toward training. Sports were classified as team sports (45%), endurance (20%), power/technical (10%), combat (9%), aquatic (6%), recreational (4%), racquet (3%), precision (2%), parasports (1%), and others (1%). Further analysis by sex was performed. Results: During lockdown, athletes practiced body-weight-based exercises routinely (67% females and 64% males), ranging from 50% (precision) to 78% (parasports). More sport-specific technical skills were performed in combat, parasports, and precision (∼50%) than other sports (∼35%). Most athletes (range: 50% [parasports] to 75% [endurance]) performed cardiorespiratory training (trivial sex differences). Compared to prelockdown, perceived training intensity was reduced by 29% to 41%, depending on sport (largest decline: ∼38% in team sports, unaffected by sex). Some athletes (range: 7%–49%) maintained their training intensity for strength, endurance, speed, plyometric, change-of-direction, and technical training. Athletes who previously trained ≥5 sessions per week reduced their volume (range: 18%–28%) during lockdown. The proportion of athletes (81%) training ≥60 min/session reduced by 31% to 43% during lockdown. Males and females had comparable moderate levels of training knowledge (56% vs 58%) and beliefs/attitudes (54% vs 56%). Conclusions: Changes in athletes’ training practices were sport-specific, with few or no sex differences. Team-based sports were generally more susceptible to changes than individual sports. Policy makers should provide athletes with specific training arrangements and educational resources to facilitate remote and/or home-based training during lockdown-type events.

Washif (jad@isn.gov.my) is corresponding author. Author affiliations and ORCID links can be found in the Appendix to the article.

Supplementary Materials

    • Supplementary Table S1 (PDF 368 KB)
    • Supplementary Table S2 (PDF 108 KB)
    • Supplementary Table S3 (PDF 106 KB)
    • Supplementary Table S4 (PDF 114 KB)
    • Supplementary Table S5 (PDF 176 KB)
    • Supplementary Table S6 (PDF 209 KB)
    • Supplementary Table S7 (PDF 342 KB)
  • Collapse
  • Expand
  • 1.

    Trabelsi K, Ammar A, Masmoudi L, et al. Globally altered sleep patterns and physical activity levels by confinement in 5056 individuals: ECLB COVID-19 international online survey. Biol Sport. 2021;38(4):495506. doi:10.5114/biolsport.2021.101605

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 2.

    Ammar A, Mueller P, Trabelsi K, et al. Psychological consequences of COVID-19 home confinement: the ECLB-COVID19 multicenter study. PLoS One. 2020;15(11):e0240204. doi:10.1371/journal.pone.0240204

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 3.

    Bok D, Chamari K, Foster C. The pitch invader–COVID-19 cancelled the game: what can science do for us, and what can the pandemic do for science? Int J Sports Physiol Perform. 2020;15(7):917919. doi:10.1123/ijspp.2020-0467

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4.

    Washif JA, Mohd Kassim SFA, Lew PCF, et al. Athlete’s perceptions of a ‘quarantine’ training camp during the COVID-19 lockdown. Front Sports Act Living. 2021;2:622858. doi:10.3389/fspor.2020.62285

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5.

    Mon-López D, García-Aliaga A, Ginés Bartolomé A, et al. How has COVID-19 modified training and mood in professional and non-professional football players? Physiol Behav. 2020;227:113148. doi:10.1016/j.physbeh.2020.113148

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 6.

    Pillay L, Janse van Rensburg DC, Jansen van Rensburg A, et al. Nowhere to hide: the significant impact of coronavirus disease 2019 (COVID-19) measures on elite and semi-elite South African athletes. J Sci Med Sport. 2020;23:670679. doi:10.1016/j.jsams.2020.05.016

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7.

    Facer-Childs ER, Hoffman D, Tran JN, et al. Sleep and mental health in athletes during COVID-19 lockdown. Sleep. 2021;44:zsaa261. doi:10.1093/sleep/zsaa261

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 8.

    Roberts C, Gill N, Sims S. The influence of covid-19 lockdown restrictions on perceived nutrition habits in rugby union players. Front Nutr. 2020;7:589737. doi:10.3389/fnut.2020.589737

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9.

    Stokes KA, Jones B, Bennett M, et al. Returning to play after prolonged training restrictions in professional collision sports. Int J Sports Med. 2020. doi:10.1055/a-1180-3692

    • Search Google Scholar
    • Export Citation
  • 10.

    Peña J, Altarriba-Bartés A, Vicens-Bordas J, et al. Sports in time of COVID-19: impact of the lockdown on team activity. Apunts Sports Med. 2021;56(209):100340. doi:10.1016/j.apunsm.2020.100340

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11.

    Mon-López D, de la Rubia Riaza A, Galán MH, et al. The impact of COVID-19 and the effect of psychological factors on training conditions of handball players. Int J Environ Res Public Health. 2020;17(18):6471. doi:10.3390/ijerph17186471

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12.

    Muriel X, Courel-Ibáñez J, Cerezuela-Espejo V, et al. Training load and performance impairments in professional cyclists during COVID-19 lockdown. Int J Sports Physiol Perform. 2020;19:14. doi:10.1123/ijspp.2020-0501

    • Search Google Scholar
    • Export Citation
  • 13.

    Herrera-Valenzuela T, Narrea Vargas JJ, Merlo R, et al. Effect of the COVID-19 quarantine on body mass among combat sports athletes. Nutr Hosp. 2020;37(6):11861189. doi:10.20960/nh.03207

    • Search Google Scholar
    • Export Citation
  • 14.

    Haddad M, Abbes Z, Mujika I, et al. Impact of COVID-19 on swimming training: practical recommendations during home confinement/isolation. Int J Environ Res Public Health. 2021;18:4767. doi:10.3390/ijerph18094767

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 15.

    de Boer DR, Hoekstra F, Huetink KIM, et al. Physical activity, sedentary behavior and well-being of adults with physical disabilities and/or chronic diseases during the first wave of the COVID-19 pandemic: a rapid review. Int J Environ Res Public Health. 2021;18(12):6342. doi:10.3390/ijerph18126342

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16.

    Yousfi N, Bragazzi NL, Briki W, et al. The COVID-19 pandemic: how to maintain a healthy immune system during the lockdown - a multidisciplinary approach with special focus on athletes. Biol Sport. 2020;37(3):211216. doi:10.5114/biolsport.2020.95125

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 17.

    Zimmerman BJ. Development and adaptation of expertise: the role of self-regulatory processes and beliefs. In: KA Ericsson, N Charness, PJ Feltovich, RR Hoffman, eds. The Cambridge Handbook of Expertise and Expert Performance. Cambridge University Press; 2006: 705722.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 18.

    Rice SM, Gwyther K, Santesteban-Echarri O, et al. Determinants of anxiety in elite athletes: a systematic review and meta-analysis. Br J Sports Med. 2019;53:722730. doi:10.1136/bjsports-2019-100620

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 19.

    di Fronso S, Costa S, Montesano C, et al. The effects of COVID-19 pandemic on perceived stress and psychobiosocial states in Italian athletes. Int J Sport Exerc Psychol. 2022;20:7991. doi:10.1080/1612197X.2020.1802612

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 20.

    Bruinvels G, Lewis NA, Blagrove RC, et al. COVID-19–Considerations for the female athlete. Front Sports Act Living. 2021;3:606799. doi:10.3389/fspor.2021.606799

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 21.

    Washif JA, Farooq A, Krug I, et al. Training during the COVID-19 lockdown: knowledge, beliefs, and practices of 12,526 athletes from 142 countries and six continents. Sports Med. 2022;52(4):933948. doi:10.1007/s40279-021-01573-z

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 22.

    Gliem J, Gliem R. Calculating, interpreting, and reporting Cronbach’s alpha reliability coefficient for Likert-type scales. Midwest Research to Practice Conference in Adult, Continuing, and Community Education; 2003.

    • Search Google Scholar
    • Export Citation
  • 23.

    Konings MJ, Hettinga FJ. Pacing decision making in sport and the effects of interpersonal competition: a critical review. Sports Med. 2018;48(8):18291843. doi:10.1007/s40279-018-0937-x

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 24.

    Seiler S. What is best practice for training intensity and duration distribution in endurance athletes? Int J Sports Physiol Perform. 2020;5(3):276291. doi:10.1123/ijspp.5.3.276

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 25.

    Steele J, Androulakis-Korakakis P, Carlson L, et al. The impact of coronavirus (covid-19) related public-health measures on training behaviours of individuals previously participating in resistance training: a cross-sectional survey study. Sports Med. 2021;51(7):15611580. doi:10.1007/s40279-021-01438-5

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 26.

    Jayaweera M, Perera H, Gunawardana B, et al. Transmission of COVID-19 virus by droplets and aerosols: a critical review on the unresolved dichotomy. Environ Res. 2020;188:109819. doi:10.1016/j.envres.2020.109819

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 27.

    Mon-López D, Moreira da Silva F, Calero Morales S, et al. What do Olympic shooters think about physical training factors and their performance? Int J Environ Res Public Health. 2019;16:4629. doi:10.3390/ijerph16234629

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 28.

    Mujika I, Padilla S. Detraining: loss of training induced physiological and performance adaptations. Part I: short term insufficient training stimulus. Sports Med. 2000;30:7987. doi:10.2165/00007256-200030020-00002

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 29.

    Spiering BA, Mujika I, Sharp MA, et al. Maintaining physical performance: the minimal dose of exercise needed to preserve endurance and strength over time. J Strength Cond Res. 2021;35(5):14491458. doi:10.1519/JSC.0000000000003964

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 30.

    Hermassi S, Bouhafs EG, Bragazzi NL, et al. Effects of home confinement on the intensity of physical activity during the covid-19 outbreak in team handball according to country, gender, competition level, and playing position: a worldwide study. Int J Environ Res Public Health. 2021;18:4050. doi:10.3390/ijerph18084050

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 31.

    Izquierdo M, Ibañez J, González-Badillo JJ, et al. Detraining and tapering effects on hormonal responses and strength performance. J Strength Cond Res. 2007;21(3):768775. doi:10.1519/00124278-200708000-00019

    • Search Google Scholar
    • Export Citation
  • 32.

    Lough N, Geurin AN. Routledge Handbook of the Business of Women’s Sport. Routledge; 2019.

  • 33.

    Costello JT, Bieuzen F, Bleakley CM. Where are all the female participants in Sports and Exercise Medicine research? Eur J Sport Sci. 2014;14(8):847851. doi:10.1080/17461391.2014.911354

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 34.

    Schumacher YO, Tabben M, Hassoun K, et al. Resuming professional football (soccer) during the COVID-19 pandemic in a country with high infection rates: a prospective cohort study. Br J Sports Med. 2021;55(19):10921098. doi:10.1136/bjsports-2020-103724

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 35.

    Washif JA, Ammar A, Trabelsi K, et al. Regression analysis of perceived stress among elite athletes from changes in diet, routine and well-being: effects of the covid-19 lockdown and “bubble” training camps. Int J Environ Res Public Health. 2022;19(1):402. doi:10.3390/ijerph19010402

    • Crossref
    • Search Google Scholar
    • Export Citation
All Time Past Year Past 30 Days
Abstract Views 5714 5715 198
Full Text Views 276 276 2
PDF Downloads 339 339 6