1. Division of Exercise Science & Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Newlands, South Africa
2. Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
3. Centre for Medical Ethics and Law, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
4. Orthopaedic Research Unit, Department of Orthopaedic Surgery, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
5. Carnegie Applied Rugby Research (CARR) centre, Institute for Sport Physical Activity and Leisure, Leeds Beckett University, Leeds, England