在光强度有氧运动期间的心血管反应与不同水平的四肢阻塞压力
William R Vanwye1, Alyssa M Weatherholt2, Lee J Winchester3
1School of Physical Therapy, Florida Southern College, Lakeland, FL, USA.
International journal of exercise science
|August 25, 2023
概括
这项研究发现,低强度骑自行车与血流限制 (BFR) 显著增加血压和感知到的炼. 在BFR运动期间,较高的四肢阻塞压力 (LOP) 导致了更大的心血管反应.
科学领域:
- 运动生理学 运动生理学
- 心血管健康 心血管健康
- 运动医学 运动医学
背景情况:
- 血液流量限制 (BFR) 训练越来越多地用于增强运动适应性.
- 了解心血管对BFR运动的反应对于安全有效的规划至关重要.
- 关于在低强度有氧运动期间不同肢体阻塞压力 (LOP) 对心血管的影响的数据有限.
研究的目的:
- 为了研究心血管对低强度自行车运动的反应,与不同水平的双边下肢BFR.
- 为了确定增加四肢阻塞压力 (LOP) 对静脉血压 (SBP),静脉血压 (DBP),平均动脉压 (MAP),心率 (HR) 和感知劳动力 (RPE) 的评级的影响.
主要方法:
- 采用了一次性,重复的措施设计.
- 30名健康的成年人 (30-60岁) 进行了低强度骑自行车 (30-39%HRR) 在四个5分钟的阶段:0% (没有BFR),40%,60%和80%LOP.
- 心血管参数 (SBP,DBP,MAP,HR,SpO2) 和RPE被测量在休息时,运动高峰和恢复期间.
主要成果:
- 在BFR循环期间逐渐提高LOP,与没有BFR相比,SBP,DBP和MAP峰值显著增加 (p<0.001).
- 感知劳动力 (RPE) 的评级也随着LOP的每个增量阶段 (p<0.001) 显著增加.
- 心率在所有疾病中保持相对稳定,这表明心血管应变主要是由血管阻力增加所驱动的.
结论:
- 低强度骑自行车与双边下肢BFR相结合,有效地提高了心血管工作量.
- 在BFR运动期间增加LOP会放大高血压反应和感知力度.
- 这些发现表明,在为管理心血管压力时,在规定BFR运动时,需要仔细考虑LOP.
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