University/British Heart Foundation Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UNITED KINGDOM. Research & Clinical Innovation, Royal Centre for Defence Medicine, Lichfield, UNITED KINGDOM. Army Personnel Research Capability, Andover, UNITED KINGDOM. Performance, Nutrition and Dietetic Consulting, Birmingham, UNITED KINGDOM. MRC Centre for Reproductive Health, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UNITED KINGDOM. Faculty of Health and Life Sciences, Coventry University, Coventry, UNITED KINGDOM. Human Metabolic Research Unit, Universities of Coventry and Warwickshire NHS Trust and University of Warwick, Warwick, UNITED KINGDOM. Research Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, Leeds, UNITED KINGDOM. Northumbria and Newcastle NHS Trusts, Wansbeck General and Royal Victoria Infirmary, Newcastle, UNITED KINGDOM. University of Newcastle, Newcastle upon Tyne, UNITED KINGDOM.