Comprehensive Dataset on Pre-SARS-CoV-2 Infection Sports-Related Physical Activity Levels, Disease Severity, and Treatment Outcomes: Insights and Implications for COVID-19 Management. - Dimitrios I. Bourdas; Panteleimon Bakirtzoglou; Antonios K. Travlos; Vasileios Andrianopoulos; Emmanouil Zacharakis (Data, 2024)