Dalton-Alves Francisco, Martins Lígia, Kassiano Witalo, Simim Mário, Medeiros Alexandre I A, DE O Assumpção Cláudio
Biotechnology and Exercise Biology Research Laboratory, Institute of Physical Education and Sports, Federal University of Ceará, Fortaleza, CE, BRAZIL.
Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, BRAZIL.
Int J Exerc Sci. 2023 Aug 1;16(4):974-986. doi: 10.70252/MWXB1638. eCollection 2023.
We compared neuromuscular, metabolic, and perceptual responses between different resistance training configurations in young women. In a counterbalanced randomized order, 13 young women performed the following protocols in separate sessions (sets x repetitions): traditional (TRAD): 5x10, 90-s of rest interval between sets; more frequent and shorter total rest (FSR): 10x5, 30-s of rest interval between sets. The sessions were composed of leg press exercise with the same intensity. Force (maximum voluntary isometric contraction [MVIC]) and metabolic (lactate concentration) responses were measured pre- and post-resistance training sessions. The rating of perceived exertion (RPE) was measured after each set. The internal training load was calculated using the session-RPE method. There was a significant reduction in the MVIC only after TRAD configuration (Effect size [ES] = 0.36). The lactate concentration increased in both conditions but was higher after TRAD (ES = 2.81) than FSR (ES = 1.23). The RPE has progressively increased in both configurations. On the other hand, the internal training load was lower in the FSR configuration. From our findings, we suggest that more frequent and shorter total rest is an effective strategy for maintaining the ability to produce force, generating less metabolic stress and lower perceived internal load in young women.
我们比较了年轻女性在不同阻力训练配置下的神经肌肉、代谢和感知反应。13名年轻女性按照平衡随机顺序，在不同时段进行以下训练方案（组数x重复次数）：传统训练（TRAD）：5x10，组间休息间隔90秒；更频繁且总休息时间更短（FSR）：10x5，组间休息间隔30秒。训练时段均采用相同强度的腿举练习。在阻力训练时段前后测量力量（最大自主等长收缩[MVIC]）和代谢（乳酸浓度）反应。每组训练后测量主观用力感觉评分（RPE）。使用训练时段-RPE方法计算内部训练负荷。仅在TRAD训练配置后MVIC有显著降低（效应量[ES]=0.36）。两种训练条件下乳酸浓度均升高，但TRAD训练后（ES=2.81）高于FSR训练后（ES=1.23）。两种训练配置下RPE均逐渐增加。另一方面，FSR训练配置下的内部训练负荷较低。根据我们的研究结果，我们认为更频繁且总休息时间更短是一种有效的策略，可用于维持年轻女性产生力量的能力，产生更少的代谢压力和更低的主观内部负荷。
