在跑步期间肌肉特异的神经肌肉反应与血液流量限制
Sean M Lubiak1, Christopher E Proppe2, Paola M Rivera3
1Department of Kinesiology.
International journal of sports medicine
|January 14, 2025
概括
在次极限运行期间,血液流量限制 (BFR) 增加了横向巨和中部巨的肌肉刺激. 这种效果模仿了没有BFR的最大运行,尽管速度较低,但突出了BFR.
科学领域:
- 运动生理学 运动生理学
- 生物力学 生物力学
- 肌肉生理学 肌肉生理学
背景情况:
- 血液流量限制 (BFR) 训练越来越多地用于增强肌肉适应.
- 了解在像跑步这样的动态活动中对BFR的神经肌肉反应对于优化训练方案至关重要.
- 之前的研究主要集中在BFR在同度或阻力练习中的影响上.
研究的目的:
- 为了比较在没有BFR的最大运行期间的肌肉刺激与BFR的亚最大运行.
- 为了研究BFR在跑步期间对横向巨,大腿直和中部巨肌肉活动的影响.
主要方法:
- 14名大学年龄的男性参与了这项研究.
- 参与者完成了三分钟的跑步,达到70%,80%和90%的峰值速度与BFR,并在100%的峰值速度没有BFR.
- 表面电肌图 (sEMG) 用于测量横向巨,大腿直和中部巨的肌肉激发幅度.
主要成果:
- 大侧肌的肌肉刺激在BFR的70%速度下降,而在BFR的90%速度下降,而在没有BFR的100%速度下降.
- 大中的肌肉刺激在BFR的70%速度下降,而BFR的90%速度下降.
- 直骨肌刺激随着跑步速度的增加而增加,并且在次最大跑步期间没有受到BFR的显著影响.
结论:
- 带有BFR的亚最大跑步可以增加横向巨和中部巨的肌肉激发,达到与没有BFR的最大跑步相当的水平.
- 在降低的跑步速度下,BFR可能允许类似的神经肌肉需求,可能提供一种训练替代方案.
- 在跑步时直腿肌的激活模式似乎不受BFR的影响,而不是大腿肌.
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