1. School of Health and Social Care, University of Teesside, Middlesbrough, UK.
2. Spinal Deformities Rehabilitation Services, Orthopaedic Practice, Gensingen, Germany.
3. Faculty of Health Sciences, Staffordshire University, Stoke on Trent, UK.
4. Sports and Exercise Section, School of Social Sciences Business and Law, Teesside University, Middlesbrough, UK.