不同的缺血预先调节压力对疼痛敏感度和阻力运动表现的影响
Ryo Kataoka1, Jun Seob Song, Yujiro Yamada
1Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, Mississippi.
Journal of strength and conditioning research
|January 3, 2024
概括
在缺血预调中的更高压力并没有改善抵抗运动的表现或疼痛敏感度. 这项研究表明,在力量训练中可能需要最低压力值来产生人体效应.
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
- 肌肉生理学 肌肉生理学
背景情况:
- 缺血预调 (IPC) 涉及暂时限制血液流动以提高后续性能.
- 对IPC人体效应的最佳压力,特别是在抵抗运动中,仍然不清楚.
- 研究不同的闭塞压力对于理解IPC机制和应用至关重要.
研究的目的:
- 确定不同缺血预调压 (110%和150%的动脉阻塞压力) 对疼痛敏感度和抵抗运动表现的影响.
- 评估压力疼痛值 (PPT) 的变化是否会调解任何观察到的性能变化.
- 为了比较这些效应与假冒程序和对照条件.
主要方法:
- 39名参与者接受了四个随机协议:IPC在110%AOP,IPC在150%AOP,Sham (10%AOP) 和时间匹配的对照.
- 每个方案都包括闭塞和再输血的周期,然后测量压力和疼痛值.
- 进行了最大的异动力肘部曲/延伸测试,以评估抵抗运动的表现.
主要成果:
- 与对照和假设条件相比,110%和150%AOP的IPC显著增加了压力疼痛值.
- 两种IPC条件都比对照和假的条件引起了更大的不适,其中150%的AOP比110%的AOP引起了更多的不适.
- 在任何条件下,在总工作,峰值扭矩或平均功率方面都没有发现显著差异.
结论:
- 在动脉阻塞压力的110%和150%的缺血预条件并不能提高抵抗运动的性能.
- 观察到的疼痛值的增加不足以介导性能改善.
- 更高的闭塞压力,可能超过150%的AOP,可能是必要的,以引起从缺血预先调节的 ergogenic 益处.
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