Dergaa, Ismail, Achraf Ammar, Amine Souissi, Mohamed Saifeddin Fessi, Khaled Trabelsi, Jordan M. Glenn, Amine Ghram, et al. “COVID-19 Lockdown: Impairments of Objective Measurements of Selected Physical Activity, Cardiorespiratory and Sleep Parameters in Trained Fitness Coaches”. EXCLI Journal 21 (August 16, 2022): 1084–1098. Accessed July 27, 2024. https://excli.de/excli/article/view/4986.