血液动力学参数的可靠性通过生物阻抗心脏学测量在不同的强度在增量运动测试期间增量运动测试
Raphael Schoch1, Jonathan Wagner1, Max Niemeyer2
1Department of Sport, Exercise and Health, Division Sports and Exercise Medicine, University of Basel, Basel, Switzerland.
Frontiers in cardiovascular medicine
|April 25, 2025
概括
生物阻抗心脏学可靠地在心肺运动测试 (CPET) 中测量小组血液动力学参数. 然而,单个测量缺乏足够的可靠性,以在通风门临床使用.
科学领域:
- 心脏病学 心脏病学
- 运动生理学 运动生理学
- 生物医学工程 生物医学工程
背景情况:
- 生物阻抗心脏学 (BIC) 是一种非侵入性的血液动力学评估方法.
- 之前的BIC可靠性研究主要集中在稳定状态或最大运动.
- 在运动期间在通风门 (VTs) 上BIC的可靠性尚未确定.
研究的目的:
- 在心肺运动测试 (CPET) 中通过生物阻抗心脏学测量出血动力学参数的可靠性.
- 在不同的运动强度下评估BIC可靠性,特别是通风门 (VT1,VT2) 和峰值氧气吸收 (V̇O2peak).
主要方法:
- 31名健康成年人接受了两个相同的7天间隔的Ramp-protocol CPET.
- 使用PhysioFlow®设备测量了血液动力学参数 (心率,中风体积,心脏输出).
- 通过在测试之间的值上匹配运动强度 (功率) 来确保可比性.
主要成果:
- 心率,中风量和心脏输出在VT1,VT2和V̇O2峰时显示出良好的组级可靠性 (ICC>0.75).
- 在V̇O2peak时,对于中风体积的个体可靠性是不够的,可检测的巨大变化超过了可接受的限度.
- 布兰德-阿尔特曼分析表明,对个人比较中风体积的可靠性不佳.
结论:
- 在CPET期间,PhysioFlow®装置提供可靠的组级血液动力学数据.
- 可靠性不足以基于在通风门的中风体积测量进行个人临床决策.
- 可能需要进一步的研究来提高生物阻抗心脏学在运动环境中的个体可靠性.
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