[1] Univ Oxford, Nuffield Dept Orthopaed Rheumatol & Musculoskelet, Botnar Res Ctr, Oxford, England
[2] Rugby Football Union, London, England
[3] England & Wales Cricket Board, Natl Cricket Performance Ctr, London, England
[4] UCL, Dept Primary Care & Populat Hlth, London, England
[5] Univ Bath, Dept Hlth, Bath, Avon, England
[6] Univ Bristol, Populat Hlth Sci, Bristol Med Sch, Bristol, Avon, England
[7] Univ Bristol, Translat Hlth Sci, Bristol Med Sch, Bristol, Avon, England