PDF(Pubmed)
Abstract：
The goal of this study was to compare the effects of a bilateral conditioning activity consisting of back squats and drop jumps with a unilateral one consisting of split squats and depth jumps to lateral hop over sequentially performed countermovement jump (CMJ), modified t-agility test (MAT), and Achilles tendon stiffness. Twenty-six basketball players participated in this study and were randomly and equally assigned to one of two different test groups: bilateral (B - CA) or unilateral (U - CA) conditioning activity group. The B - CA group completed 2 sets of 4 repetitions of back squats at 80% of one-repetition maximum (1RM), then 10 drop jumps, while the U - CA group performed 2 sets of 2 repetitions of split squats on each leg at 80%1RM, followed by 5 depth jumps to lateral hop on each leg as conditioning activity (CA) complexes. After a warm-up and 5 min before the CA the baseline Achilles tendon stiffness, CMJ, and MAT time measurement were performed. In the 6th min after the CA, all tests were re-tested in the same order. The two-way repeated measures mixed ANOVAs revealed that both B - CA and U - CA failed to produce significant improvements in CMJ and MAT performance. In addition, a significant increase in Achilles stiffness was demonstrated with both protocols (a main effect of time: p = 0.017; effect size = 0.47; medium). This study revealed that combining back squats and drop jumps, as well as split squats and depth jumps to a lateral hop, had no effect on subsequent CMJ and MAT performance in basketball players. Based on these results, it can be assumed that combinations of exercises, even if they have similar movement patterns, may cause excessive fatigue, resulting in no PAPE effect.
摘要：
这项研究的目的是比较由后深蹲和跌落跳跃组成的双侧条件活动与由分开深蹲和深度跳跃组成的单侧条件活动的影响，以横向跳跃顺序执行的反运动跳跃（CMJ）。修正的t-敏捷性试验(MAT)，和跟腱刚度。26名篮球运动员参加了这项研究，并被随机平均分配到两个不同的测试组之一：双侧（B-CA）或单侧（U-CA）条件活动组。B-CA组完成了2组4次重复的后深蹲，一次重复最大值（1RM）的80％，然后跳10次,而U-CA组在80%1RM的情况下，在每条腿上进行了2组2次重复的分裂深蹲，然后在每条腿上进行5次深度跳跃，以作为调节活动（CA）复合物。热身后和CA前5分钟，基线跟腱刚度，CMJ,进行MAT时间测量。在CA后的第6分钟，所有测试均按相同顺序重新测试.混合方差分析的双向重复测量表明，B-CA和U-CA均未能在CMJ和MAT性能方面产生显着改善。此外,两种方案均显示跟腱刚度显著增加(时间的主要效应:p=0.017;效应大小=0.47;中等).这项研究表明，结合后下蹲和下跳，以及分开的深蹲和深度跳跃到横向跳跃，对篮球运动员随后的CMJ和MAT表现没有影响。基于这些结果,可以假设练习的组合，即使它们有相似的运动模式，可能会导致过度疲劳，没有PAPE效应。
