1. Queen Mary University of London, Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, London, UK
2. Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Via Allende, Baronissi, Salerno, Italy
3. Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End Hospital, 275 Bancroft Road, London E1 4DG, Englan
4. Institute of Science and Technology in Medicine, Keele University School of Medicine, Stoke on Trent ST4 8FB, England