摘要：Post-activation potentiation (PAP) has been shown to improve acute power performance. Depth jumps might elicit PAP resulting in improved vertical jump. The purpose of this study was to compare different volumes of depth jumps with rebound as a warm-up for vertical jumping. Seventeen collegiate women soccer players (age: 18.94±.74 yrs, height: 169.35±5.25 cm, mass: 66.07±6.42 kg) volunteered to participate in five testing sessions separated by at least 48 hours. Each subject warmed up on the cycle ergometer, then performed three pre-test countermovement jumps followed by 0, 3, 6, 9, or 12 depth jumps with rebound in random order. Box height was set at the level of the lateral femoral condyle for each subject. Subjects then rested for ten minutes followed by three post-test countermovement jumps. Dependent variables were Vertec vertical jump height (VJ) and relative ground reaction force (rGRF) measured by a force plate. ANOVA revealed no significant interactions but there was a main effect for time for VJ with pre-test (41.02±4.50 cm) being greater than post-test (40.42±4.30 cm). There were no main effects for rGRF (pre- 24.07±2.48 N/kg; post- 23.73±2.60 N/kg). These results suggest that the volume, box height and/or rest time used in this study were insufficient to elicit PAP and not only failed to increase vertical jump performance but resulted in a decrease. Therefore, it is suggested that collegiate women soccer players do not use depth jumps at knee height with these volumes and rest times as a warm-up in an effort to increase vertical jump performance.
