RT Journal Article SR Electronic T1 SportsMedUpdate 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 832 OP 834 DO 10.1136/bjsports-2011-090182 VO 45 IS 10 A1 Martin P Schwellnus YR 2011 UL http://bjsm.bmj.com/content/45/10/832.abstract AB