Is COVID-19 infection decreasing the sports performance of the volleyball players? A pilot study

Background: Coronavirus (COVID-19) infection has made restrictions on every sports level, from the audience to athletes worldwide. Volleyball players’ life were affected by COVID-19 infection, the layout of training, and competitions. This study aims to show the effect of COVID-19 infection on the performance of volleyball players. Methods: Nineteen volleyball players aged 15–20 in the same volleyball club and infected with COVID-19 in the first...