Hernández Davó Jose L, Solana Rafael Sabido, Sarabia Marín Jose M, Fernández Fernández Jaime, Moya Ramón Manuel
Sport Research Center, Miguel Hernández University of Elche, Elche, Spain.
J Strength Cond Res. 2016 May;30(5):1265-74. doi: 10.1519/JSC.0000000000001214.
This study aimed to test the influence of various rest interval (RI) durations used between sets on power output performance and physiological and perceptual variables during a strength training session using 40% of the 1 repetition maximum (1RM) in the bench press throw exercise. Thirty-one college students (18 males and 13 females) took part in the study. The experimental protocol consists of 5 sets of 8 repetitions of the bench press throw exercise with a load representing 40% of 1RM. Subjects performed the experimental protocol on 3 different occasions, differing by the RI between sets (1, 2, or 3 minutes). During the sessions, power data (mean power and peak power), physiological (lactate concentration [La]) and perceptual (rating of perceived exertion) variables were measured. In addition, delayed onset muscular soreness was reported 24 and 48 hours after the training session. One-way repeated-measures analysis of variance showed that 1-minute RI entailed higher power decreases and greater increases in values of physiological and perceptual variables compared with both 2- and 3-minute RIs. Nevertheless, no differences were found between 2- and 3-minute RIs. Therefore, this study showed that, when training with 40% of 1RM in the bench press throw exercise, a 2-minute RI between sets can be enough to avoid significant decreases in power output. Consequently, training sessions' duration could be reduced without causing excessive fatigue, allowing additional time to focus on other conditioning priorities.
本研究旨在测试在卧推投掷练习中使用40%的1次重复最大值（1RM）进行力量训练时，组间不同休息间隔（RI）时长对功率输出表现以及生理和感知变量的影响。31名大学生（18名男性和13名女性）参与了该研究。实验方案包括5组，每组8次卧推投掷练习，负荷为1RM的40%。受试者在3种不同情况下执行实验方案，组间RI不同（1、2或3分钟）。在训练过程中，测量功率数据（平均功率和峰值功率）、生理变量（乳酸浓度[La]）和感知变量（主观用力程度评级）。此外，在训练 session 后24小时和48小时报告延迟性肌肉酸痛情况。单因素重复测量方差分析表明，与2分钟和3分钟的RI相比，1分钟的RI导致功率下降更高，生理和感知变量值增加更大。然而，2分钟和3分钟的RI之间未发现差异。因此，本研究表明，在卧推投掷练习中使用1RM的40%进行训练时，组间2分钟的RI足以避免功率输出显著下降。因此，可以减少训练 session 的时长而不会导致过度疲劳，从而有额外时间专注于其他训练重点。
