1. Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
2. Institute of Sport Exercise and Health, London, UK
3. Division of Surgery & Interventional Science, University College London, London, UK
4. School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
5. Univ Lyon, Ucb Lyon 1, Laboratoire Interuniversitaire de Biologie de La Motricité, Villeurbanne, France
6. Health Research Board, Dublin, Ireland
7. College of Health Sciences, Qatar University, Doha, Qatar