通过血液流量限制坐练习提高跳跃性能:使用波形包转换的肌肉协同分析
Chenxi Hu1,2, Ning Du3,1, Yanfeng Li2
1China Institute of Sport and Health Science, Beijing Sport University, Beijing, China.
Journal of sports science & medicine
|September 11, 2025
概括
血流限制 (BFR) 坐运动通过改善肌肉协调和神经肌肉激活模式来提高跳跃能力. 这项研究使用了先进的分析来揭示BFR如何影响反运动跳跃期间的肌肉协同作用.
科学领域:
- 运动生理学 运动生理学
- 神经肌肉控制控制神经肌肉控制
- 生物力学 生物力学
背景情况:
- 血流限制 (BFR) 训练是增强肌肉缩和力量的一种流行的方法.
- 了解神经肌肉对BFR运动的适应,特别是在动态运动期间,对于优化训练方案至关重要.
- 以前的研究主要集中在同度或慢速动态收缩,对复杂的爆炸性运动,如反运动跳跃 (CMJ) 的研究有限.
研究的目的:
- 为了研究BFR坐运动在反运动跳跃 (CMJ) 期间对神经肌肉控制的影响.
- 分析肌肉协同模块和激活模式的变化,使用波束包转换 (WPT) 和非负矩阵因子化 (NMF).
- 为了确定BFR运动是否通过改变神经肌肉策略来急剧提高CMJ性能.
主要方法:
- 15名经过抵抗训练的男性在40%的动脉阻塞压力下进行了四组.
- 八个下肢肌肉的表面电肌图 (sEMG) 在CMJ期间在BFR坐之前和之后记录.
- 波束包转换 (WPT) 与非负矩阵因子化 (NMF) 结合,用于分析时间频域中的肌肉协同作用.
- 测量了反运动跳跃高度和修改后的反应强度指数 (RSImod).
主要成果:
- 关节的高度和RSImod在BFR squat运动后显著增加 (P < 0.001).
- 确定了四个不同的肌肉协同模块,在不同的协同作用中观察到肌肉贡献重量的显著变化.
- 在0-250赫兹频率范围内的肌肉激活重量的显著变化被注意到,这表明神经肌肉招募模式发生了改变.
- 特定的肌肉,如 gluteus maximus, vastus medialis 和 vastus lateralis,在它们对肌肉协同作用的贡献中显示出显著的变化.
结论:
- BFR坐练习急剧提高CMJ的表现.
- 提高CMJ性能与精细的肌肉协同组织和改变的神经肌肉激活模式有关.
- 在WPT-NMF分析中,我们对BFR运动后CMJ期间肌肉协同作用的时间频率特征提供了新的见解.
- 这些发现表明,BFR训练可以修改神经肌肉控制策略,从而改善爆炸功率输出.
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