在重复的握手运动中心脏巴罗反射灵敏度:与坐立动作和自发休息的比较
Wenxing Qin1,2, Marina Fukuie2, Daisuke Hoshi2
1Institute of Health and Sport Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.
重复的手握练习 (RHE) 提供了一个可行的替代方案,以坐立动作 (SSM) 评估心脏巴罗反射灵敏度 (BRS),特别是在不动的个体. RHE改善了BRS估计,而SSM可能表明巴罗反射重置.
科学领域:
- 心血管生理学心血管生理学
- 自主神经系统功能 自主神经系统功能
- "巴罗反射法规"的规定
背景情况:
- 心脏巴罗反射对于通过自主心率控制来维持动脉压至关重要.
- 坐立机动 (SSM) 常用于评估巴罗反射灵敏度 (BRS),但它们的实用性对于不动的人来说是有限的.
- 需要使用其他方法来评估BRS.
研究的目的:
- 在重复握手运动 (RHE) 期间调查心脏BRS,与SSM和自发休息相比.
- 通过转移函数分析 (BRSTFA) 和序列方法 (BRSSM) 评估RHE和SSM对BRS估计的影响.
主要方法:
- 20名参与者 (10名女性) 接受了0.10 Hz和0.05 Hz的5分钟RHE和SSM随机顺序.
- 用BRSTFA和BRSSM在低 (LF) 和非常低 (VLF) 频段计算心脏BRS.
- 分析了系统血压 (SBP) 和R-R间隔 (RRI) 振荡的功率光谱密度 (PSD).
主要成果:
- 与休息相比,RHE显著增加了SBP和RRIPSD,SSM显示最高值.
- RHE和SSM增加了LF和VLF BRSTFA的一致性.
- 在RHE期间,BRS保持不变,但在0.10 Hz SSM期间显著下降,与心率增加相关.
结论:
- 通过增加一致性,RHE增强了BRSTFA估计,使其成为SSM的合适替代品.
- 在SSM期间BRS的下降表明巴罗反射重置现象.
- RHE提供了一种实用的方法,用于评估BRS在各种人群中,包括那些移动性有限的人群.
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