RT Journal Article SR Electronic T1 Joint Conference of BASEM and BASES 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 464 OP 470 DO 10.1136/bjsm.37.5.464 VO 37 IS 5 YR 2003 UL http://bjsm.bmj.com/content/37/5/464.abstract AB