了解强力阻力训练中的感知劳动:感知劳动和肌肉疲劳之间的关系
Hanye Zhao1, Takanori Kurokawa2, Masayoshi Tajima2
1Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.
PeerJ
|December 3, 2025
概括
在动力板压力过程中感知到的劳动力主要是由外围疲劳驱动的,而不是中央反应. 减速和中位频率,而不是RMS,反映了这种疲劳,但减速需要谨慎的解释.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 神经肌肉生理学 神经肌肉生理学
背景情况:
- 感知到的努力是以力量为导向的抵抗训练的关键因素.
- 在此类训练期间感知到的劳动力 (中心和外围疲劳) 的主要驱动因素仍然不清楚.
- 这项研究调查了神经肌肉反应影响在动力板压力过程中感知到的劳动力.
研究的目的:
- 为了检查神经肌肉反应对在动力板压力 (BPress) 运动期间感知劳动力 (RPE) 评级的影响.
- 在动力训练中区分中央和外围疲劳对RPE的贡献.
- 在不同训练量下评估神经肌肉变量与RPE之间的关系.
主要方法:
- 16名训练有素的男性完成了3个BPress任务,其一次重复的最高率为65%,并具有不同的体积 (低,中,高).
- 测量包括感知力度 (RPE),表面电肌图 (SEMG) 和速度损失等等级.
- 分析的重点是来自SEMG数据的峰值根平均平方 (RMS) 和中位数频率 (MDF).
主要成果:
- 随着重复的增加和不同训练量 (p < 0.001),RPE,速度损失和MDF显示出显著的变化.
- 峰值RMS在各种条件或重复中没有显著差异.
- 在中位频率 (MDF) 和速度损失之间没有发现显著的相关性.
结论:
- 边缘疲劳,反映在速度损失和MDF中,在功率BPress期间显著影响RPE.
- 在这种情况下,与MDF和速度损失相比,峰值RMS对疲劳的敏感性较小.
- 减速是一种潜在的疲劳指标,但在基于功率的阻力运动中需要仔细解释.
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