血流限制运动对中央血液动力学和液体调节激素的影响
Kyle M A Thompson1, Alexander S D Gamble, Alexandra M Coates
1Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, CANADA.
Medicine and science in sports and exercise
|September 22, 2023
概括
在100%的LOP下进行血流限制 (BFR) 运动,最大限度地提高心血管反应和荷尔蒙变化. 肢体血液体积似乎不会在BFR运动期间驱动这些调节液体的荷尔蒙反应.
科学领域:
- 生理学 生理学 生理学
- 运动科学 运动科学
- 心血管研究研究心血管研究
背景情况:
- 血液流量限制 (BFR) 是一种炼技术,涉及部分阻断到四肢的血液流量.
- 了解BFR的最佳参数,特别是闭塞压力,对于最大限度地发挥其生理效应至关重要.
- 对BFR运动的心血管和液体调节反应需要进一步描述.
研究的目的:
- 为了确定在血液流量限制 (BFR) 运动期间变化的限制压力的有效性.
- 研究优化BFR对人类心血管和液体调节反应的影响.
- 分析BFR期间血液体积分布和荷尔蒙反应之间的关系.
主要方法:
- 第1阶段包括心声回声,心率 (HR) 和血压 (BP) 测量在骑自行车时与BFR在0-125%的最低动脉封闭压力 (LOP).
- 第二阶段评估了24小时的液体平衡和液体调节激素反应,在BFR跑步机上行走 (100%LOP) 后.
- 第三阶段使用了CO-再呼吸技术来检查BFR跑步机行走后四肢的血液体积分布.
主要成果:
- 心脏喷射率保持稳定,而心率和血压在100%的LOP时是最高的.
- 与正常行走相比,BFR跑步机上行走显著增加了宁和平素水平,但液体保留没有差异.
- 在BFR期间,大约有27%的血液体积被隔离在腿部,但这与荷尔蒙释放无关.
结论:
- 在100%的LOP时,血流限制运动会引起最显著的心血管效应和荷尔蒙反应.
- 在BFR运动期间,液体调节的荷尔蒙反应是相当大的.
- 在肢体中被困的血液体积似乎不是观察到的荷尔蒙反应的主要驱动因素.
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