RT Journal Article SR Electronic T1 Redefining the overtraining syndrome as the unexplained underperformance syndrome 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 67 OP 68 DO 10.1136/bjsm.34.1.67 VO 34 IS 1 A1 Budgett, R A1 Newsholme, E A1 Lehmann, M A1 Sharp, C A1 Jones, D A1 Jones, T A1 Peto, T A1 Collins, D A1 Nerurkar, R A1 White, P YR 2000 UL http://bjsm.bmj.com/content/34/1/67.abstract AB