自主调节和非自主调节的血液流量限制在急性动脉硬性
Nicholas Rolnick1,2, Nicholas Licameli3, Masoud Moghaddam4
1Exercise Science, Lehman College, Bronx, United States.
International journal of sports medicine
|August 10, 2023
概括
在血液流量限制阻力运动期间的自我调节有助于保持动脉硬. 然而,非自我调节的运动会增加中枢动脉的硬度,这凸显了个性化的压力施加的重要性.
科学领域:
- 运动生理学 运动生理学
- 心血管生理学心血管生理学
- 生物医学工程 生物医学工程
背景情况:
- 血液流量限制 (BFR) 阻力运动是一个不断增长的训练方式.
- 自主调节与非自主调节的BFR对动脉硬性的影响尚未完全理解.
- 动脉硬是心血管健康的一个关键指标.
研究的目的:
- 研究自主调节和非自主调节的BFR抵抗运动对动脉硬性的急性影响.
- 将这些效应与没有BFR的对照条件进行比较.
- 为了确定个性化的压力应用是否影响心血管反应.
主要方法:
- 20名身体活跃的成年人接受了三次随机的BFR阻力炼 (自我调节的BFR,非自我调节的BFR,没有BFR).
- 运动涉及墙壁坐到意志疲劳,使用一次重复的20%的最大值.
- 动脉硬性被评估使用带-带和带-辐射脉冲波速,平平度计和血压测量在每次会议之前和之后.
主要成果:
- 在非自我调节的BFR和没有BFR组中,带关节脉冲波速增加 (p<0.05).
- 在没有BFR的组中,心-辐射脉冲波速增加 (p<0.05).
- 一种相互作用效应有利于自调节的BFR,用于动脉-大腿脉冲波速 (p<0.05),表明保留了中心度.
结论:
- 自主调节的BFR抵抗运动不会急剧改变动脉硬的指数.
- 非自调节的BFR和传统的抵抗运动会增加中枢动脉的硬.
- 在BFR中个性化的压力可能对减轻不良血管效应至关重要.
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