1. Carnegie Applied Rugby Research (CARR) Centre, Leeds Beckett University, Institute for Sport, Physical Activity and Leisure, Carnegie School of Sport, Leeds, UK
2. Leeds Rhinos RLFC, Leeds, UK
3. Leeds United FC, Leeds, UK
4. Independent Researcher, Leeds, UK
5. Catapult, Leeds, UK
6. England Performance Unit, The Rugby Football League, Leeds, UK
7. Stable Isotope Biochemistry Laboratory, Scottish Universities Environmental Research Centre, Rankine Avenue, Scottish Enterprise Technology Park, East Kilbride, UK
8. Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, the University of Cape Town and Sports Science Institute of South Africa, Cape Town, South Africa