1. School of Public Health, Department of Health Sciences (DISSAL), Genoa University, 16126 Genoa, Italy
2. Department of Physical Education and Sport, College of Education, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
3. Higher Institute of Sport and Physical Education of Ksar Said, University of Manouba, Manouba 2010, Tunisia
4. Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON M3J 1P3, Canada