TY - JOUR T1 - Commentary 1 on “Physical performance changes after unsupervised training during the autumn/spring semester break in competitive tennis players” JF - British Journal of Sports Medicine JO - Br J Sports Med SP - 710 LP - 710 DO - 10.1136/bjsm.2007.039990 VL - 41 IS - 11 AU - Maarten Moen Y1 - 2007/11/01 UR - http://bjsm.bmj.com/content/41/11/710.1.abstract N2 - Detraining effects have never been properly investigated for tennis players. This research … ER -