1. Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
2. Department of Public & Occupational Health and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
3. Institute for Sport, Physical Activity and Leisure, Centre for Sport Performance, School of Sport, Fairfax Hall, Headingley Campus, Leeds Beckett University, Leeds, United Kingdom