与传统的低负荷和高负荷运动相比,低负荷血流限制对静脉系统的影响
Alexander Franz1,2, Sanghyeon Ji3,4, Frank Sebastian Fröschen1
1Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany.
Frontiers in physiology
|January 1, 2024
概括
低负荷的血流限制 (BFR) 训练与低负荷或高负荷阻力运动相比,不会增加静脉压力或对静脉功能产生负面影响. 这项研究为BFR训练的急性生理影响提供了新的见解.
科学领域:
- 运动生理学 运动生理学
- 血管生物学 血管生物学
- 运动医学 运动医学
背景情况:
- 血液流量限制 (BFR) 训练可以在低机械负荷的情况下实现肌肉缩.
- BFR对静脉压力和功能的急性影响仍然在很大程度上未被探索.
- 了解这些影响对于优化BFR培训协议至关重要.
研究的目的:
- 研究低负荷BFR抵抗训练 (LL-BFR-RT) 对血管内静脉压力和静脉功能的影响.
- 将这些效应与低负荷阻力训练 (LL-RT) 和高负荷阻力训练 (HL-RT) 进行比较.
主要方法:
- 一个随机的交叉设计,涉及十名健康男性执行单边膝盖伸缩炼.
- 三个协议:LL-RT (30% 1RM),LL-BFR-RT (30% 1RM,50% LOP) 和HL-RT (75% 1RM) 导致自愿失败.
- 静脉导管用于测量静脉压力; 静脉功能评估的动力学; 疼痛视觉模拟尺度.
主要成果:
- 在LL-BFR-RT中,与LL-RT和HL-RT相比,总工作量明显较低 (p=0.004).
- 在不同条件之间,在炼过程中静脉压力 (相互作用p=0.140) 或疼痛感知 (相互作用p=0.574) 没有显著差异.
- 体动力学评估显示,对静脉功能没有显著的时间,条件或相互作用影响 (例如,补充时间).
结论:
- 没有BFR的LL-BFR-RT急性地不会提高静脉压力,高于没有BFR的可比运动.
- LL-BFR-RT在运动后对静脉功能没有不利影响.
- 这项研究是第一个描述LL-BFR-RT对静脉血液动力学的急性影响的研究.
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