- риск заражения до 2.6% с 3.1%
- тяжёлой болезни до 0.35% с 0.66%
- смерти до 0.02% с 0.08%

Physical activity and the risk of SARS-CoV-2 infection, severe COVID-19 illness and COVID-19 related mortality in South Korea: a nationwide cohort study
https://bjsm.bmj.com/content/bjsports/early/2021/07/21/bjsports-2021-104203.full.pdf?with-ds=yes


Вывод: Our findings suggest that engaging in physical activity has substantial public health value and demonstrates potential benefits to combat COVID-19.