静态和自感神经肌肉便利化的急性影响,延伸到腿筋肌肉性和运动范围:一个随机交叉研究
Petra Železnik1, Amadej Jelen1, Klemen Kalc1
1Faculty of Health Sciences, University of Primorska, Polje 42, 6310, Izola, Slovenia.
European journal of applied physiology
|October 6, 2023
概括
静态拉伸 (SS) 和自感神经肌肉促进 (PNF) 拉伸都能增强腿筋的灵活性. 然而,PNF伸展独特地降低了双腿骨肌肉硬度,这表明了改善运动范围的不同潜在机制.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
背景情况:
- 灵活性和肌肉刚性对于运动表现和伤害预防至关重要.
- 静态拉伸 (SS) 和自感神经肌肉促进 (PNF) 是改善灵活性的常见方法.
- 这些技术对肌肉机械特性 (如剪切模量) 的急性影响需要进一步阐明.
研究的目的:
- 为了比较SS和PNF拉伸对腿筋灵活性和肌肉剪切模量的急性影响.
- 调查灵活性变化是否与肌肉机械性质的变化相关.
- 了解特定的肌肉对不同拉伸方式的反应.
主要方法:
- 一项随机交叉研究,涉及16名娱乐活跃的年轻人.
- 测量包括通过被动直腿提升和积极膝盖延伸的运动范围 (RoM).
- 两腿肌 (BF) 和半肌 (ST) 肌肉的剪切模量使用剪切波弹性学进行了评估.
- 伸展干预之后进行有氧热身,在基线,热身后和伸展后进行测量.
主要成果:
- 无论SS还是PNF都显著增加了腿筋RoM,两种技术之间没有显著差异.
- 延伸PNF显著降低了BF肌肉剪切模量,表明肌肉性减少.
- 在任何拉伸方法中都没有观察到ST肌肉剪切模块的变化.
- 在RoM和剪切模量变化之间没有发现显著的相关性.
结论:
- 两个SS和PNF是有效的急性改善腿筋灵活性.
- 延伸PNF可以提供额外的好处,通过减少双腿骨肌肉硬度.
- 伸展后的RoM增加可能主要是由伸展耐力的变化驱动的,而不是肌肉机械特性.
- 应考虑对伸展技术的个体肌肉反应,以优化灵活性干预措施.
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