1. Department and Research Unit in Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium;
2. Department of Rehabilitation and Sports Sciences, University of Liège, Liège, Belgium;
3. Department of Physical Medicine and Sports Traumatology, SportS2, University and University Hospital of Liège, Liège, Belgium;
4. Haute Ecole de la ville de Liège, Liège, Belgium;
5. Department of Public Health, Biostatistics, University of Liège, Liège, Belgium