[1] Sch Hlth Social Care & Life Sci, Inverness IV2 31H, Scotland
[2] Univ Leicester, Diabet Res Ctr, Leicester Gen Hosp, Leicester LE5 4PW, Leics, England
[3] Leicester Gen Hosp, NIHR Leicester Biomed Res Ctr, Leicester LE5 4PW, Leics, England
[4] Leicester Gen Hosp, Univ Hosp Leicester, Leicester Diabet Ctr, Leicester LE5 4PW, Leics, England
[5] Leicester Gen Hosp, Collaborat Leadership Appl Hlth Res & Care East M, Leicester LE5 4PW, Leics, England
[6] Loughborough Univ, Sch Sport Exercise & Hlth Sci, Loughborough LE11 3TU, Leics, England
[7] Loughborough Univ, Natl Ctr Sport & Exercise Sci, Loughborough LE11 3TU, Leics, England
[8] Bangor Univ, Ctr Hlth Econ & Med Evaluat, Bangor LL57 2PZ, Gwynedd, Wales