1. Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, Western Cape, South Africa
2. Health through Physical Activity, Lifestyle and Sport Research Centre (HPALS), Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, Western Cape, South Africa
3. Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, West Yorkshire, UK
4. Centre for Sport Coaching, Carnegie School of Sport, Leeds Beckett University, Leeds, West Yorkshire, UK
5. Leeds Rhinos Rugby League Club, Leeds, West Yorkshire, UK
6. Discipline of Physiotherapy, School of Medicine, Trinity College Dublin, Dublin, Leinster, Ireland
7. England Performance Unit, The Rugby Football League, Manchester, Greater Manchester, UK