1. H. Khalil, BSc, MSc, Department of Physiotherapy and Research Centre of Clinical Kinaesiology, School of Healthcare Studies, Cardiff University, Cardiff, South Glamorgan, United Kingdom.
2. L. Quinn, PT, EdD, Department of Physiotherapy and Research Centre of Clinical Kinaesiology, School of Healthcare Studies, Cardiff University.
3. R. van Deursen, PhD, Department of Physiotherapy and Research Centre of Clinical Kinaesiology, School of Healthcare Studies, Cardiff University.
4. R. Martin, Video Unit, Media Resources Centre, Cardiff University.
5. A. Rosser, PhD, FRCP, Departments of Psychological Medicine and Neurology, Schools of Medicine and Biosciences, Cardiff University.
6. M. Busse, BSc (Hons), MSc, PhD, MCSP, Department of Physiotherapy and Research Centre of Clinical Kinaesiology, School of Healthcare Studies, Cardiff University, Ty Dewi Sant, Heath Park, Cardiff, South Glamorgan, CF14 4XN, United Kingdom.