由奇特运动诱导的重复发作效应对男性关节硬性耐力的影响
Soushi Mino1, Nobuhiro Yoshizawa1, Takanori Teshima2
1Department of Life Science, The University of Tokyo, Meguro, Tokyo, Japan.
Physiological reports
|August 9, 2025
概括
奇特的运动可以提高关节硬性耐力. 重复的奇特运动,分隔两周,显著改善脚关节硬和活跃肌肉硬,减少运动引起的肌肉损伤.
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
- 生物力学 生物力学
背景情况:
- 众所周知,古怪的运动会诱导肌肉损伤和随后的适应.
- 重复炼效应 (RBE) 描述了在初次炼后对随后的肌肉损伤的保护现象.
- 了解RBE对神经肌肉特性 (如关节硬) 的影响,对于训练优化至关重要.
研究的目的:
- 为了研究异常运动中反复发作效应 (RBE) 对关节性耐力的影响.
- 为了确定先前的异常运动暴露是否减轻了随后的疲劳任务后脚关节硬度和活跃肌肉硬度的下降.
主要方法:
- 十二名健康的男性进行了三个疲劳的脚重点下降跳跃协议:第一 (FFT),第二 (SFT) 在FFT后两周在同一肢体上,和对立 (OFT) 在对侧肢体上.
- 在每次疲劳任务之前和之后,测量了脚关节硬度,活跃肌肉硬度和足部和前肌的电肌图 (EMG) 活动.
- 活跃肌肉硬是从快速拉伸后收缩过程中估计肌肉力量和带长度的变化中得出的.
主要成果:
- 在第一次 (FFT) 和相反的 (OFT) 疲劳任务之后,观察到关节性和活跃肌肉性的显著减少.
- 在不同跳跃阶段的电肌图活动在FFT和OFT之后保持不变.
- 在同一个四肢的第二次发作 (SFT) 后,关节度略有下降,而活跃肌肉度没有显著变化.
- 与FT和OFT相比,在SFT条件下,关节硬和活跃肌肉硬的降低幅度明显较小.
结论:
- 由异常运动引起的重复发作效应显著增强了关节硬性和活跃肌肉硬性耐力.
- 奇特运动之间两周的间隔似乎足以防止随后的关节和肌肉硬度下降.
- 这些发现表明,结合战略性间隔的古怪运动会可以提高神经肌肉的弹性和性能.
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