改进第一个心率变化值和气交换值之间的协议
Bruce Rogers1, Pablo R Fleitas-Paniagua2, Juan M Murias3
1College of Medicine, University of Central Florida, Orlando, FL, USA.
International journal of sports physiology and performance
|September 30, 2024
概括
与标准方法相比,用于计算第一个心率变化值 (HRVT1c) 的新定制方法显示了与气交换值 (GET) 的更好的一致性. 这种个性化的方法提高了确定运动强度值的准确性.
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:
- 第一个心率变化 (HRV) 衍生值,特别是使用偏差波动分析alpha 1 (DFA a1),显示与已确定的气体交换值 (GET) 有不一致的一致性.
- 现有的计算第一个HRV值 (HRVT1) 的方法可能无法充分捕捉在增量运动期间的个体生理反应.
研究的目的:
- 调查基于个人HRV特征的第一个HRV值 (HRVT1c) 计算的定制方法是否能改善与气交换值 (GET) 的一致性.
- 为了比较GET与两种确定第一个HRV值的方法之间的协议:标准DFA a1 = 0.75 (HRVT1s) 和自定义值 (HRVT1c).
主要方法:
- 14名参与者完成了浮标增量运动测试,同时测量了气交换变量和HRV分析的RR间隔.
- 定制HRVT1c是使用DFA a1值在早期坡道阶段观察到的最大值和0.5.5之间的中间位置来确定的.
- 在GET时的氧气消耗 (V ̇O2) 和心率 (HR) 与HRVT1s和HRVT1c时的心率进行了比较.
主要成果:
- 在GET和HRVT1之间发现了统计学上显著的差异,无论是V ̇O2 (25.4 vs 29.8 mL·kg-1·min-1) 和HR (131 vs 146节拍·min-1).
- 在GET和HRVT1c之间没有观察到V ̇O2 (25.4对25.1毫升·公斤-1·分钟-1) 或HR (131对132节拍·分钟-1) 的统计差异,并验证了同等性.
- GET和HRVT1方法之间的皮尔森相关系数在0.67到0.70之间.
结论:
- 与标准方法 (HRVT1s) 相比,定制衍生的第一个心率变化值 (HRVT1c) 与气体交换值 (GET) 参数的一致性明显更强.
- 建议使用这种个性化方法来计算HRVT1以更准确地根据HRV确定运动强度值.
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