1. School of Behavioural and Health Sciences, Australian Campus University, Brisbane, Australia
2. Carnegie Applied Rugby Research (CARR) centre, Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, Leeds, UK
3. England Performance Unit, The Rugby Football League, Leeds, UK
4. Yorkshire Carnegie Rugby Club, Headingley Carnegie Stadium, Leeds, UK
5. Department of Sports Sciences and Physical Conditioning, Faculty of Education, CIEDE, Catholic University of Most Holy Concepción, Concepción, Chile
6. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
7. Department of Health and Medical Sciences, Swinburne University of Technology, Melbourne, Australia
8. Department of Kinesiology and Sport, School of Education and Human Development, University of Miami, Miami, USA
9. The Rugby Football League, Leeds, UK
10. Leeds Rhinos Rugby Club, Headingley Carnegie Stadium, Leeds, UK
11. School of Science and Technology, University of New England, Armidale, Australia