1. School of Sport, Health and Exercise Science, Faculty of Science and Health University of Portsmouth Portsmouth UK
2. Cystic Fibrosis Unit, University Hospital Southampton NHS Foundation Trust Southampton UK
3. School of Pharmacy and Biomedical Sciences, Faculty of Science and Health University of Portsmouth Portsmouth UK
4. Department of Diabetes and Endocrinology Queen Alexandra Hospital Portsmouth UK
5. Sport and Health Sciences, College of Life and Environmental Science University of Exeter Exeter UK
6. National Institute for Health Research, Southampton Biomedical Research Centre, Southampton Children's Hospital Southampton UK