RT Journal Article SR Electronic T1 Chad Cook JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 616 OP 617 DO 10.1136/bjsports-2016-096173 VO 51 IS 7 A1 Windt, Johann YR 2017 UL http://bjsm.bmj.com/content/51/7/616.abstract AB