Tufano James J, Conlon Jenny A, Nimphius Sophia, Brown Lee E, Petkovic Alex, Frick Justin, Haff G Gregory
Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic.
Centre for Exercise and Sports Science Research, Edith Cowan University, Joondalup, Australia.
J Hum Kinet. 2017 Aug 1;58:35-43. doi: 10.1515/hukin-2017-0069. eCollection 2017 Sep.
Eight resistance-trained men completed three protocols separated by 48-96 hours. Each protocol included 36 repetitions with the same rest duration, but the frequency and length of rest periods differed. The cluster sets of four (CS4) protocol included 30 s of rest after the 4th, 8th, 16th, 20th, 28th, and 32nd repetition in addition to 120 s of rest after the 12th and 24th repetition. For the other two protocols, the total 420 s rest time of CS4 was redistributed to include nine sets of four repetitions (RR4) with 52.5 s of rest after every four repetitions, or 36 sets of single repetitions (RR1) with 12 s of rest after every repetition. Mean (MF) and peak (PF) force, velocity (MV and PV), and power output (MP and PP) were measured during 36 repetitions and were collapsed into 12 repetitions for analysis. Repeated measures ANOVA 3 (protocol) x 12 (repetition) showed a protocol x repetition interaction for PF, MV, PV, MP, and PP (p-values from <0.001 to 0.012). No interaction or main effect was present for MF. During RR1, MV, PV, MP, and PP were maintained, but decreased throughout every 4-repetition sequence during CS4 and RR4. During CS4 and RR4, PF was less following a rest period compared to subsequent repetitions, whereas PF was maintained during RR1. These data indicate that rest redistribution results in similar average kinetics and kinematics, but if total rest time is redistributed to create shorter but more frequent sets, kinetics and kinematics may remain more constant.
八名进行抗阻训练的男性完成了三个方案，每个方案间隔48 - 96小时。每个方案都包含36次重复动作，休息时长相同，但休息周期的频率和长度有所不同。四重复动作成组（CS4）方案在第4、8、16、20、28和32次重复动作后休息30秒，在第12和24次重复动作后休息120秒。对于其他两个方案，CS4方案总共420秒的休息时间被重新分配，包括九组每组四次重复动作（RR4），每组四次重复动作后休息52.5秒，或者36组单次重复动作（RR1），每次重复动作后休息12秒。在36次重复动作过程中测量了平均（MF）和峰值（PF）力量、速度（MV和PV）以及功率输出（MP和PP），并将其合并为12次重复动作进行分析。重复测量方差分析3（方案）×12（重复次数）显示，对于PF、MV、PV、MP和PP存在方案×重复次数的交互作用（p值范围为<0.001至0.012）。MF不存在交互作用或主效应。在RR1期间，MV、PV、MP和PP保持稳定，但在CS4和RR4的每4次重复动作序列中均有所下降。在CS4和RR4期间，与后续重复动作相比，休息期后的PF较低，而在RR1期间PF保持稳定。这些数据表明，休息时间的重新分配会导致相似的平均动力学和运动学，但如果将总休息时间重新分配以形成更短但更频繁的组，动力学和运动学可能会保持更稳定。
