RT Journal Article SR Electronic T1 Julia Alleyne 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 686 OP 687 DO 10.1136/bjsports-2016-096192 VO 51 IS 8 A1 Johann Windt YR 2017 UL http://bjsm.bmj.com/content/51/8/686.abstract AB