College of Physical Education and Dance, Federal University of Goiás, Goiânia, Brazil.
College of Physical Education, University of Brasília, Brasília, Brazil.
J Strength Cond Res. 2021 May 1;35(5):1372-1379. doi: 10.1519/JSC.0000000000002915.
Santos, WDNd, Vieira, CA, Bottaro, M, Nunes, VA, Ramirez-Campillo, R, Steele, J, Fisher, JP, and Gentil, P. Resistance training performed to failure or not to failure results in similar total volume, but with different fatigue and discomfort levels. J Strength Cond Res 35(5): 1372-1379, 2021-The purpose of this study was to compare the acute response to 4 sets of high velocity parallel squats performed to momentary failure (MF) or not to momentary failure (NF). Twelve women (24.93 ± 5.04 years) performed MF and NF protocols, in a randomized order with 2-3 interday rest. The protocol involved 4 sets of parallel squats executed at high velocity at 10RM load, with 2 minutes of rest interval between sets. During the NF protocol, the sets were interrupted when the subject lost more than 20% of mean propulsive velocity. The analysis involved the number of repetitions performed per set, total number of repetitions, movement velocity loss, power output loss, rating of perceived exertion (RPE), rating of perceived discomfort (RPD), and session rating of perceived exertion (sRPE). Compared with NF, MF resulted in a higher number of repetitions in the first set (11.58 ± 1.83 vs. 7.58 ± 1.72, p < 0.05), but a lower in the last set (3.58 ± 1.08 vs. 5.41 ± 1.08, p < 0.05). Total number of repetitions was similar between the protocols (MF 26.25 ± 3.47 vs. NF 24.5 ± 3.65, p > 0.05). In both protocols, there were significant decreases in maximum and mean movement velocity loss and power output loss, but higher decreases were observed in MF than NF (p < 0.05). Values for RPE, sRPE, and RPD were higher during MF than NF (p < 0.05). Controlling the movement velocity in NF protocol enabled performance of a similar total volume of repetitions with lower movement velocity and power output losses, RPE, sRPE, and RPD than during an MF protocol.
桑托斯、WDNd、维埃拉、CA、博塔罗、M、努涅斯、VA、拉米雷斯-坎皮略、R、斯蒂尔、J、费舍尔、JP 和根蒂尔、P。力竭或非力竭的抗阻训练会产生相似的总训练量，但疲劳和不适水平不同。《美国体能协会杂志》35(5):1372-1379, 2021-本研究的目的是比较 4 组高速平行深蹲至力竭（MF）或非力竭（NF）的急性反应。12 名女性（24.93±5.04 岁）以随机顺序进行 MF 和 NF 方案，2-3 天的组间休息。方案包括 4 组以 10RM 负荷执行的高速平行深蹲，组间休息 2 分钟。在 NF 方案中，当受试者的平均推进速度损失超过 20%时，该组被中断。分析包括每组的重复次数、总重复次数、运动速度损失、功率输出损失、主观疲劳感知评估（RPE）、主观不适感知评估（RPD）和运动后主观疲劳感知评估（sRPE）。与 NF 相比，MF 导致第一组的重复次数更高（11.58±1.83 比 7.58±1.72，p<0.05），但最后一组的重复次数较低（3.58±1.08 比 5.41±1.08，p<0.05）。两个方案的总重复次数相似（MF 26.25±3.47 比 NF 24.5±3.65，p>0.05）。在两个方案中，最大和平均运动速度损失和功率输出损失都显著降低，但 MF 比 NF 下降更大（p<0.05）。RPE、sRPE 和 RPD 在 MF 时高于 NF（p<0.05）。在 NF 方案中控制运动速度可以使重复次数达到相似的总训练量，同时运动速度和功率输出损失、RPE、sRPE 和 RPD 低于 MF 方案。
