1. Manchester School of Physiotherapy, Manchester Royal Infirmary, Manchester M13 9WL,
2. Robert Barnes Stroke Rehabilitation Unit, Manchester Royal Infirmary,
3. Division of Imaging Science and Biomedical Engineering, Faculty of Medicine, Dentistry and Nursing, Stopford Building, University of Manchester and
4. Nursing, School of Nursing, Midwifery and Health Visiting, University of Manchester and Central Manchester Healthcare Trust