1 Institute of Sport and Exercise Medicine, Department of Exercise, Sport and Lifestyle Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa phoebe.runciman@gmail.com.
2 Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
3 Deptartment of Family Medicine, University of Ottawa, Ottawa, Ontario, Canada.
4 Rehabilitation Medicine Research Group, Department of Health Sciences, Lund University, Lund, Sweden.
5 Sport, Exercise Medicine and Lifestyle Institute, University of Pretoria Faculty of Health Sciences, Pretoria, South Africa.
6 IOC Research Centre, South Africa, Pretoria, South Africa.
7 School of Sport and Health Sciences, Loughborough University, Loughborough, UK.
8 Institute of Sport and Exercise Medicine, Department of Exercise, Sport and Lifestyle Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.