Faculty of Physical Education, Center for Biological and Health Science, University Presbiterian Mackenzie, São Paulo, Brazil.
J Strength Cond Res. 2012 Mar;26(3):739-44. doi: 10.1519/JSC.0b013e318225f371.
Postactivation potentiation (PAP) is a strategy used to improve performance in power activities. The aim of this study was to determine if power during bench press exercise was increased when preceded by 1 repetition maximum (1RM) in the same exercise and to determine which time interval could optimize PAP response. For this, 11 healthy male subjects (age, 25 ± 4 years; height, 178 ± 6 cm; body mass, 74 ± 8 kg; bench press 1RM, 76 ± 19 kg) underwent 6 sessions. Two control sessions were conducted to determine both bench press 1RM and power (6 repetitions at 50% 1RM). The 4 experimental sessions were composed of a 1RM exercise followed by power sets with different recovery intervals (1, 3, 5, and 7 minutes), performed on different days, and determined randomly. Power values were measured via Peak Power equipment (Cefise, Nova Odessa, São Paulo, Brazil). The conditions were compared using an analysis of variance with repeated measures, followed by a Tukey test. The significance level was set at p < 0.05. There was a significant increase in PAP in concentric contractions after 7 minutes of recovery compared with the control and 1-minute recovery conditions (p < 0.05). Our results indicated that 7 minutes of recovery has generated an increase in PAP in bench press and that such a strategy could be applied as an interesting alternative to enhance the performance in tasks aimed at increasing upper-body power performance.
肌肉激发(PAP)是一种用于提高力量活动表现的策略。本研究旨在确定在相同运动中进行 1 次最大重复次数(1RM)之前,是否会增加卧推运动时的力量,并确定哪个时间间隔可以优化 PAP 反应。为此,11 名健康男性受试者(年龄 25 ± 4 岁;身高 178 ± 6 厘米;体重 74 ± 8 公斤;卧推 1RM76 ± 19 公斤)进行了 6 次训练。进行了 2 次对照训练,以确定卧推 1RM 和功率(50% 1RM 重复 6 次)。4 次实验训练由 1RM 运动和不同恢复间隔(1、3、5 和 7 分钟)的力量训练组成,在不同的日子进行,并且随机确定。通过 Peak Power 设备(Cefise,Nova Odessa,São Paulo,巴西)测量功率值。使用重复测量方差分析比较条件,然后使用 Tukey 检验。显著性水平设置为 p < 0.05。与对照组和 1 分钟恢复期相比,7 分钟恢复期的向心收缩时 PAP 显著增加(p < 0.05)。我们的结果表明,7 分钟的恢复期可以增加卧推中的 PAP,这种策略可以作为一种有趣的选择,以提高旨在增加上身力量表现的任务的表现。