RT Journal Article SR Electronic T1 CORRECTION 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 793 OP 793 DO 10.1136/bjsm.2004.000044corr1 VO 38 IS 6 YR 2004 UL http://bjsm.bmj.com/content/38/6/793.2.abstract AB