在血流限制下对异动力学收缩的情感,感知和生理反应
Jordyn N Heckler1, Scott J Dankel2
1Department of Health and Exercise Science, Exercise Physiology Laboratory, Rowan University, Glassboro, NJ, USA.
The Journal of sports medicine and physical fitness
|July 5, 2024
概括
血流限制 (BFR) 与最大的异动力学收缩相结合,会增加运动引起的疲劳. 虽然BFR增强了异动力学训练的有效性,但更高的压力会减少乐趣并增加不适,可能会影响坚持.
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
- 康复医学 康复医学 康复医学
背景情况:
- 血液流量限制 (BFR) 已被认为可以增强低负荷耐力训练.
- 有限的研究存在于BFR的作用与最大的异动力学收缩.
- 对于异动力运动的最佳BFR压力和收缩速度仍然不清楚.
研究的目的:
- 为了研究不同血流限制 (BFR) 压力对最大异动力学肘部曲的影响.
- 评估BFR对肌肉疲劳,胀和在异动力学收缩期间感知到的劳动力的影响.
- 为了确定收缩速度 (60°/s和300°/s) 对BFR疗效的影响.
主要方法:
- 27名参与者在0%,40%和80%的动脉阻塞压力下,以60°/s和300°/s的速度进行了三组20次最大肘部曲.
- 运动前后测量肌肉厚度.
- 评估了扭矩,疲劳,不适,感知激活和享受.
主要成果:
- 较高的BFR压力在60°/s和300°/s时显著增加了与扭矩相关的疲劳.
- 肌肉胀发生在各种条件下,特别是在300°/s收缩期间的40%BFR下降.
- 80%的BFR压力与减少享受,增加不适以及更高的感知激活相关.
结论:
- 将BFR与最大的异动力学收缩相结合,可以增强疲劳的发展.
- BFR可能会改善长期的异动力学训练结果,对肌肉胀的影响最小.
- 考虑到由于享受程度降低和随着更高的BFR压力增加的不适而导致粘附程度降低至关重要.
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