1 School Sport, Exercise & Health Sciences, National Centre for Sport and Exercise Medicine - East Midlands, Loughborough University, Loughborough LE11 3TU, United Kingdom; Department of Epidemiology and Public Health, University College London, London, United Kingdom; NIHR Leicester Biomedical Research Centre, United Kingdom. Electronic address: m.hamer@lboro.ac.uk.
2 NIHR Leicester Biomedical Research Centre, United Kingdom; University of Leicester, Diabetes Research Centre, Leicester Diabetes Centre, Leicester General Hospital, United Kingdom.
3 Department of Epidemiology and Public Health, University College London, London, United Kingdom.