The incidence of COVID-19: a geographical analysis of 7676 Brazilian CrossFit participants
Abstract
Objective: We aimed to investigate in the CrossFit population the incidence of COVID-19 in Brazilian CcrossFit participants. Materials and Methods: A cross-sectional study was conducted on 7676 CrossFit subjects. Subjects were asked about their age, genre, demographic region resident, training experience, weekly practice training, motivation to training, COVID-19 contamination (y/n), hospitalization due to COVID-19, days hospitalized by COVID-19, and treatment used against COVID-19. Results: The positive COVID-19 index was 26.1% (1997 cases). Only 0.3% of the CrossFit subjects were hospitalized. The North demographic region was less motivated to train CrossFit than the South region. We did not find significance for COVID-19 contamination and genre, training frequency, training experience, and age. Conclusions: CrossFit subjects were low exposed to being hospitalized due to COVID-19. This study strengthens the evidence of physical exercise as a part of the protection against COVID-19 hospitalization. Exercise coaches should rethink how to insert CrossFit training into lockdown periods.
References
-Center For Disease Control and Prevention. Centers for Disease Control and Prevention. 2019 Novel coronavirus, Wuhan, China. Information for Healthcare Professionals. p. https://www.cdc.gov/coronavirus/2019-nCoV/hcp/index.html, 2019. Disponível em: https://www.cdc.gov/coronavirus/2019-nCoV/hcp/index.html. Acesso em: 12/03/2022.
-Claudino, J.G.; Gabbett, T.J.; Bourgeois, F.; Souza, H.S. e colaboradores. CrossFit overview: Systematic review and meta-analysis. Sports Med Open. Vol. 4. Num. 1. 2018. p. 1-14.
-Cohen, J. A power primer. Psychol Bull. Num. 112. 1992. p. 155-159.
-Dominski, F.H.; Teixeira, T.; Thais, S.; Siqueira, C. e colaboradores. Psychological variables of CrossFit participants : a systematic review. Sport Sciences for Health. Vol. 1. Num. 1. 2020. p. 1-21.
-Halla, G.; Laddu, D.R.; Phillips, S.A.; Lavie, C.J.; e colaboradores. A tale of two pandemics: How will COVID-19 and global trends in physical inactivity and sedentary behavior affect one another? Progress in Cardiovascular Diseases. Vol. 64. Num. 1. 2021. p. 108-1101.
-Kucharski, A.J.; Klepac, P.; Conlan, A.J.K.; Kissler, S.M.; e colaboradores. Effectiveness of isolation, testing, contact tracing, and physical distancing on reducing transmission of SARS-CoV-2 in different settings: a mathematical modelling study. The Lancet Infectious Diseases. Vol. 20. Num. 10. 2020. p. 1151-1160.
-Meyer, J.; Mcdowell, C.; Lansing, J.; Brower, C.; e colaboradores. Changes in physical activity and sedentary behavior in response to covid-19 and their associations with mental health in 3052 us adults. International Journal of Environmental Research and Public Health. Vol. 17. Num. 18. 2020. p. 1-13.
-Meyer, J.; Morrison, J.; Zuniga, J. The Benefits and Risks of CrossFit: A Systematic Review. Workplace Health Saf. Vol. 1. Num. 1. 2017. p. 1-13.
-Okely, A.D.; Kontsevaya, A.; Ng, J.; Abdeta, C. 2020 WHO guidelines on physical activity and sedentary behavior. Sports Medicine and Health Science. Vol. 3. Num. 2. 2021. p. 115-118.
-Ranzani, O.T.; Bastos, L.S.L.; Gelli, J.G.M.; Marchesi, J.F. Characterisation of the first 250 000 hospital admissions for COVID-19 in Brazil: a retrospective analysis of nationwide data. The Lancet Respiratory Medicine. Vol. 9. Num. 4. 2021. p. 407-418.
-Redwood-Brown, A.; Ralston, G.W.; Wilson, J. Incidence, severity and perceived susceptibility of COVID-19 in the UK CrossFit population. BMC Sports Science, Medicine and Rehabilitation. Vol. 13. Num. 1. 2021. p. 1-12.
-Silva, D.R.; Werneck, A.O.; Malta, D.C.; Souza-Júnior, P.R.B.. Incidence of physical inactivity and excessive screen time during the first wave of the COVID-19 pandemic in Brazil: what are the most affected population groups? Annals of Epidemiology. Vol. 62. Num. 1. 2021. p. 30-35.
-Silva, L.; Filho, D.F.; Fernandes, A. The effect of lockdown on the COVID-19 epidemic in Brazil: Evidence from an interrupted time series design. Cadernos de Saude Publica. Vol. 36. Num. 10. 2020.
-Souza, F.R.; Motta-Santos, D.; Santos Soares, D.; Lima, J.B.. Association of physical activity levels and the prevalence of COVID-19-associated hospitalization. Journal of Science and Medicine in Sport. Vol. 24. Num. 9. 2021. p. 913-918.
-Talic, S.; Shah, S.; Wild, H.; Gasevic, D. e colaboradores. Effectiveness of public health measures in reducing the incidence of covid-19, SARS-CoV-2 transmission, and covid-19 mortality: Systematic review and meta-analysis. The BMJ. Num. 375. 2021. p. 1-15.
-World Health Organization. COVID-19 cases around the world. 2022. Disponível em: https://covid19.who.int/region/amro/country/br. Acesso em: 16/03/2022.
-Zecchin-Oliveira, A.; Ribeiro, V.B.; Puggina, E.F. Training routine and motivation among CrossFit ® participants in Brazil and Portugal during the COVID-19 pandemic: an observational study. Revista Brasileira de prescrição e fisiologia do exercício. São Paulo. Vol. 14. Num. 94. 2020. p. 907-916.
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