Laboratory of TFESP, Academic Department of Physical Education, Federal Technological University of Paraná, Curitiba, PR,Brazil.
Laboratory of Adaptations to Strength Training, School of Physical Education and Sport, University of São Paulo, São Paulo, SP,Brazil.
Int J Sports Physiol Perform. 2023 Aug 3;18(10):1206-1212. doi: 10.1123/ijspp.2022-0419. Print 2023 Oct 1.
Studies on postactivation performance enhancement (PAPE) have used different exercises as a conditioning activity to investigate potentiation, but exclusively in upper limbs (UL) or lower (LL) limbs, or contralateral potentiation. A single exercise capable of inducing PAPE in both UL and LL is currently unknown. The present study explored the effect of the clean and jerk (C&J) as a conditioning activity for simultaneously producing PAPE interlimbs at the fourth, seventh, and 12th minutes postintervention. Twelve male weightlifters with 1-repetition maximum (1RM) in the C&J equivalent to ≥1.15 × body mass were randomly submitted to 2 experimental conditions (C&J and control [CON]). The C&J condition consisted of general warm-up (running on a treadmill and self-selected preparatory exercises) and 4 sets of 3 repetitions of C&J with 2 minutes between them (30%1RM, 50%1RM, 65%1RM, and 80%1RM) followed by a countermovement jump and a bench-press throw on a Smith machine after 4, 7, and 12 minutes, to measure the magnitude of PAPE in UL and LL. No previous exercise preceded countermovement-jump and bench-press-throw tests in the CON besides general warm-up. The main finding was that, regardless of time, the C&J resulted in greater height on countermovement jump and Smith machine bench-press throw when compared with the CON, presenting a similar effect size between UL and LL (34.6 [3.9] vs 33.4 [4.1] cm [+3.66%]; P = .038; effect size = 0.30 and 30.3 [4.7] vs 29.0 [5.1] cm [+4.44%]; P = .039; effect size = 0.26), respectively. Thus, C&J can be useful to produce PAPE simultaneously among members.
关于后激活性能增强（PAPE）的研究使用了不同的练习作为调节活动来研究增强，但仅限于上肢（UL）或下肢（LL），或对侧增强。目前还不知道一种能够同时在上肢和下肢诱导 PAPE 的单一练习。本研究探讨了挺举（C&J）作为一种调节活动的效果，以在干预后第 4、7 和 12 分钟同时产生四肢间的 PAPE。12 名男性举重运动员的 C&J 1 次重复最大重量（1RM）相当于≥1.15×体重，随机分为 2 个实验条件（C&J 和对照[CON]）。C&J 条件包括一般热身（在跑步机上跑步和自我选择的准备练习）和 4 组 3 次重复的 C&J，每组之间间隔 2 分钟（30%1RM、50%1RM、65%1RM 和 80%1RM），然后在第 4、7 和 12 分钟后进行反向跳和在史密斯机上进行卧推投掷，以测量 UL 和 LL 中 PAPE 的幅度。CON 除了一般热身外，没有进行反向跳和卧推投掷测试的前期练习。主要发现是，无论时间如何，C&J 导致反向跳和史密斯机卧推投掷的高度都比 CON 更大，在上肢和下肢之间呈现出相似的效应大小（34.6[3.9] vs 33.4[4.1]cm[+3.66%]；P=.038；效应大小=0.30和 30.3[4.7] vs 29.0[5.1]cm[+4.44%]；P=.039；效应大小=0.26）。因此，C&J 可以有效地同时在成员之间产生 PAPE。
