1. Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, UK
2. Department of Nursing, Midwifery and Health, Northumbria University, Newcastle upon Tyne, UK
3. Department of Population Health Sciences, King's College London, London, UK
4. Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, UK
5. Norwich Medical School, University of East Anglia, Norwich, UK
6. Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
7. School of Sport, Exercise and Rehabilitation Sciences, University of Hull, Hull, UK