1. L Roberts, PhD, MCSP, is Superintendent Physiotherapist, Physiotherapy Department, Southampton University Hospitals NHS Trust, Southampton, Hampshire, United Kingdom, and Senior Lecturer, School of Health Professions and Rehabilitation Sciences, Southampton University, Southampton, Hampshire, United Kingdom
2. SJ Bucksey, MSc, MCSP, is Physiotherapy Manager, West Dorset Hospitals NHS Trust, Dorchester, Dorset, United Kingdom. She was a student in the School of Health Professions and Rehabilitation Sciences, Southampton University, when this work was completed