Dergaa, I., A. Ammar, A. Souissi, M. S. Fessi, K. Trabelsi, J. M. Glenn, A. Ghram, M. Taheri, K. Irandoust, H. Chtourou, M. Romdhani, H. Ben Saad, and K. Chamari. “COVID-19 Lockdown: Impairments of Objective Measurements of Selected Physical Activity, Cardiorespiratory and Sleep Parameters in Trained Fitness Coaches”. EXCLI Journal, vol. 21, Aug. 2022, pp. 1084-98, doi:10.17179/excli2022-4986.