1. Mediclinic Corporate Events Department, Mediclinic (PTY) Ltd, Stellenbosch, South Africa
2. Institute of Sport and Exercise Medicine, Department of Exercise, Sport and Lifestyle Medicine, Stellenbosch University, Cape Town, South Africa
3. Sport, Exercise Medicine and Lifestyle Institute, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
4. International Olympic Committee Research Centre, Pretoria, South Africa
5. Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
6. Department of Human Movement Science, Cape Peninsula University of Technology, Wellington, South Africa
7. Biostatistics Unit, South African Medical Research Council, Cape Town, South Africa
8. Statistics and Population Studies, University of the Western Cape, Cape Town, South Africa