RT Journal Article SR Electronic T1 The authors reply 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 268 OP 268 DO 10.1136/bjsm.30.3.268-a VO 30 IS 3 A1 D Maclaren A1 A Miles A1 I O'Neil A1 M Critchley A1 S Grime A1 H Stockdale YR 1996 UL http://bjsm.bmj.com/content/30/3/268.2.abstract AB