Validity of Heart Rate Measurement Using Wearable Devices During Cardiopulmonary Exercise Testing in Patients With Cardiovascular Disease: Prospective Pilot Validation Study.

IF 2.2 Q2 Medicine
JMIR Cardio Pub Date : 2025-10-06 DOI:10.2196/77911
Kazufumi Kitagaki, Yuji Hongo, Rie Futai, Takeshi Hasegawa, Hiroshi Morikawa, Hisashi Shimoyama
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引用次数: 0

Abstract

Background: Wearable devices offer a promising solution for remotely monitoring heart rate (HR) during home-based cardiac rehabilitation. However, evidence regarding their accuracy across varying exercise intensities and patient profiles remains limited, particularly in populations with cardiovascular disease (CVD) such as those with heart failure (HF).

Objective: The objective of this study was to evaluate the accuracy of HR measurements obtained using the Fitbit Inspire 3 during cardiopulmonary exercise testing (CPX) in patients with CVD, including those with HF.

Methods: In this single-center, prospective pilot study, we enrolled 30 patients with CVD undergoing CPX. HR was simultaneously recorded using electrocardiography and the Fitbit Inspire 3 at 1-minute intervals across various CPX phases: rest, exercise below and above the anaerobic threshold (AT), and recovery. The correlation between the two methods was assessed using the Pearson correlation coefficient. Measurement error was quantified by mean absolute error and mean absolute percentage error (MAPE), with a MAPE of ≤10% defined as the threshold for acceptable agreement.

Results: All data points were 630 points per minute. The Fitbit Inspire 3 device demonstrated a strong overall correlation with electrocardiography-derived HR (r=0.90; IQR 0.88-0.91) and an acceptable MAPE of 5.40% (SD 8.33%). The total error was 14.9% (94/630), with overestimation and underestimation of 37 (5.8%) points and 57 (9%) points, respectively. The rate of HR underestimation reached 19 (16%) points during exercise above the AT, compared to 1 (3%) point at rest. When stratified by HF stage (B vs C), underestimation was more pronounced in patients with HF (14/275, 5% points vs 40/355, 11.2% points).

Conclusions: The Fitbit Inspire 3 provides acceptable validity for HR monitoring during CPX in patients with CVD. However, clinicians should interpret HR data with caution during high-intensity exercise, especially in patients with HF.

心血管疾病患者心肺运动试验中使用可穿戴设备测量心率的有效性:前瞻性试点验证研究
背景:在家庭心脏康复过程中,可穿戴设备为远程监测心率(HR)提供了一个很有前途的解决方案。然而,关于它们在不同运动强度和患者情况下的准确性的证据仍然有限,特别是在心血管疾病(CVD)人群中,如心力衰竭(HF)患者。目的:本研究的目的是评估使用Fitbit Inspire 3在心血管疾病(包括心衰)患者心肺运动试验(CPX)中获得的HR测量的准确性。方法:在这项单中心前瞻性先导研究中,我们招募了30例接受CPX治疗的CVD患者。在不同的CPX阶段(休息、低于和高于无氧阈值(at)的运动和恢复)中,每隔1分钟使用心电图和Fitbit Inspire 3同时记录HR。使用Pearson相关系数评估两种方法之间的相关性。测量误差通过平均绝对误差和平均绝对百分比误差(MAPE)来量化,MAPE≤10%定义为可接受的一致性阈值。结果:所有数据点均为630分/分。Fitbit Inspire 3设备与心电图衍生的HR (r=0.90; IQR为0.88-0.91)和可接受的MAPE(标准差为8.33%)具有很强的整体相关性。总误差为14.9%(94/630),其中高估37点(5.8%),低估57点(9%)。运动时心率低估率达到19点(16%),而休息时心率低估率为1点(3%)。当按HF分期(B / C)分层时,低估在HF患者中更为明显(14/275,5% vs 40/ 355,11.2%)。结论:Fitbit Inspire 3对于心血管疾病患者CPX期间HR监测具有可接受的有效性。然而,临床医生在高强度运动期间应谨慎解释HR数据,尤其是心衰患者。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
JMIR Cardio
JMIR Cardio Computer Science-Computer Science Applications
CiteScore
3.50
自引率
0.00%
发文量
25
审稿时长
12 weeks
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