在心率快速变化期间,蓝牙可穿戴心率监测器的动态响应
Mariah Sabioni1, Jonas Willén1, Seraina A Dual1
1Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden.
Physiological measurement
|July 7, 2025
概括
商用心率监测器显示对快速心率变化的响应时间有所不同. Movesense active 显示出最快的 RRI 延迟,而所有设备在强度炼期间都难以准确捕捉峰值和低谷.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 心血管生理学心血管生理学
背景情况:
- 可穿戴心率 (HR) 监测器被广泛用于健身和健康跟踪.
- 它们在动态HR变化期间的准确性,对于运动生理学至关重要,往往没有得到验证.
- 现有的验证研究经常忽视这些设备的动态响应特性.
研究的目的:
- 量化和评估商用蓝牙胸部戴式HR监视器RR间隔 (RRI) 和HR测量的动态响应.
- 在诱导快速HR变化时评估设备性能,模拟各种炼场景.
- 在不同的可穿戴显示器上比较RRI和HR数据的延迟和一致性.
主要方法:
- 合成心电图 (ECG) 信号被生成以模拟快速的HR变化 (步骤,运动,间歇性运动).
- 四个商用蓝牙胸部戴式HR监控器 (Garmin HRM-Dual,Movesense active,Polar H10,Wahoo TRACKR) 进行了测试.
- 记录了RRI和HR数据,并根据参考信号评估了延迟 (RRI和HR) 和一致性.
主要成果:
- RRI延迟差异很大,Movesense active (0.4s) 显示出最快的响应,而Polar H10 (2.6s) 和Wahoo TRACKR (2.1s) 则较慢.
- 在设备和测试条件之间,HR响应延迟也存在差异;Movesense active始终表现出最低的HR延迟.
- 所有测试的设备在间歇性炼期间都低估了HR峰值和高估了HR谷,在较低的HR值中观察到更大的不准确性.
结论:
- 商业人力资源监控器采用各种数字过技术,影响其准确捕捉快速人力资源波动的能力.
- RRI和HR测量的动态特征至关重要,在标准验证协议中经常被忽视.
- 对于需要精确跟踪急剧HR变化的应用 (例如,高强度间歇训练),建议采用节拍对节拍RRI记录,而不是处理HR数据.
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