在Fitbit Versa 4和关于时间域夜间心率变化的参考标准之间达成协议:试点研究
Andrew Nasr1, Khosrow Behbehani2, Jijia Wang3
1School of Physical Therapy, Texas Women University, Denton, TX, USA.
Digital health
|November 21, 2025
概括
惠比特Versa 4显示出与基于心电图的设备在睡眠期间测量心率变化 (HRV) 的强烈一致. 这表明消费者可穿戴设备可以在临床环境之外可靠地跟踪自主神经系统 (ANS) 的健康状况.
科学领域:
- 生理学 生理学 生理学
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
背景情况:
- 减少心率变化 (HRV) 与影响整体健康的自主神经系统 (ANS) 失衡有关.
- 消费者可穿戴设备提供HRV测量,但其临床可靠性往往未经验证.
- 这项研究验证了Fitbit Versa 4的夜间HRV精度与黄金标准相比.
研究的目的:
- 为了评估Fitbit Versa 4测量夜间心率变化 (HRV) 的能力.
- 为了将Fitbit Versa 4的HRV数据与参考的门诊心电图装置 (Firstbeat Bodyguard 3) 的数据进行比较.
- 评估消费者可穿戴HRV测量的可靠性和一致性.
主要方法:
- 8名参与者同时使用Fitbit Versa 4和Firstbeat Bodyguard 3至少3个晚上.
- 夜间HRV是使用连续差异 (RMSSD) 的平方根平均值来量化.
- 统计分析包括t测试,线性混合模型和布兰德-阿尔特曼分析.
主要成果:
- 来自Fitbit和Firstbeat的RMSSD值中位数没有显著差异 (p=0.3858).
- 平均而言,Fitbit测量的平均值为参考Firstbeat测量的92.3%.
- 分析表明两种设备之间存在强烈的相关性和可接受的一致性.
结论:
- 菲特比特Versa 4显示出与ECG衍生的HRV测量具有强烈的相关性和可接受的一致性.
- 初步证据支持Fitbit Versa 4用于实验室外的夜间HRV监测.
- 消费者可穿戴设备显示出作为评估ANS功能的可访问工具的潜力.
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