心率变化的相关性,以评估跑步者的第一通风门和疲劳
Bas Van Hooren1, Bram Mennen1, Thomas Gronwald2
1Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands.
心率变化 (HRV) 的阻断波动分析 (DFA-a1) 准确地识别了跑步者的第一呼吸门 (VT1). 然而,急性疲劳会影响DFA-a1的准确性,建议其用于非疲劳状态和疲劳监测.
科学领域:
- 运动生理学 运动生理学
- 心血管健康 呼吸系统健康
- 生物医学工程 生物医学工程
背景情况:
- 第一个呼吸门 (VT1) 是运动强度的关键指标.
- 心率变化 (HRV) 分析,特别是阻断波动分析 (DFA-a1),显示了对非侵入性VT1检测的希望.
- 消费级可穿戴技术为可访问的生理监测提供了潜力.
研究的目的:
- 为了评估DFA-a1的准确性,从消费者胸带测定VT1在跑步者.
- 调查急性疲劳对DFA-a1区分VT1.1的能力的影响.
- 将DFA-a1衍生VT1与传统气体交换方法进行比较.
主要方法:
- 14名参与者进行了增量跑步机运行测试,同时进行气体交换和HRV测量.
- 从HRV数据计算DFA-a1,并分析其与VT1 (定义为气体交换) 的关系.
- 使用布兰德-阿尔特曼分析和线性回归来评估方法之间的一致性.
主要成果:
- 在最初的运动阶段,DFA-a1值为0.75,在氧气吸收和心率方面与气体交换VT1密切一致.
- DFA-a1准确度的个体变化与标准气体交换方法相比较.
- 在第二次练习坡道上观察到同意率的显著下降,这表明疲劳的影响.
结论:
- 消费级胸带DFA-a1是识别非疲劳的跑步者中VT1的可行工具.
- 急性疲劳会影响DFA-a1对VT1划界的准确性.
- DFA-a1对疲劳的敏感性为基于疲劳的训练处方和监测提供了机会.
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