Kim Chul, Kim Seung Hyoun, Suh Mi Rim
Department of Rehabilitation Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
Department of Rehabilitation Medicine, Sanggye Paik Hospital, Seoul, Korea.
Ann Rehabil Med. 2022 Aug;46(4):209-218. doi: 10.5535/arm.22050. Epub 2022 Aug 31.
To assess the accuracies and validities of popular smart bands for heart rate (HR) measurement in cardiovascular disease (CVD) patients during a graded exercise test (GXT).
Seventy-eight patients were randomly assigned to wear two different smart bands out of three possible choices: Samsung Galaxy Fit 2, Xiaomi Mi Band 5, or Partron PWB-250 on each wrist. A 12-lead exercise electrocardiogram (ECG) and patch-type single-lead ECG were used to assess the comparative HR accuracy of the smart bands. The HR was recorded during the GXT using the modified Bruce protocol.
The concordance correlation coefficients (rc) were calculated to provide a measure of agreement between each device and the ECG. In all conditions, the Mi Band 5 and Galaxy Fit 2' correlations were rc>0.90, while the PWB-250 correlation was rc=0.58 at rest. When evaluating the accuracy according to the magnitude of HR, all smart bands performed well (rc>0.90) when the HR was below 100 but accuracy tended to decrease with higher HR values.
This study showed that the three smart bands had a high level of accuracy for HR measurements during low-intensity exercise. However, during moderate-intensity and high-intensity exercise, all the three smart bands performed less accurately. Further studies are needed to find a more optimal smart band for HR measurement that can be used for precise HR monitoring during formal cardiac rehabilitation exercise training, including at high and maximal intensity (Clinical Trial Registration No. cris.nih.go.kr/KCT0007036).
评估在分级运动试验（GXT）期间，流行的智能手环用于测量心血管疾病（CVD）患者心率（HR）的准确性和有效性。
78名患者被随机分配在每只手腕佩戴三种可能选择中的两种不同智能手环：三星Galaxy Fit 2、小米手环5或Partron PWB - 250。使用12导联运动心电图（ECG）和贴片式单导联ECG评估智能手环的比较HR准确性。在GXT期间使用改良的布鲁斯方案记录HR。
计算一致性相关系数（rc）以衡量每个设备与ECG之间的一致性。在所有情况下，手环5和Galaxy Fit 2的相关性为rc>0.90，而PWB - 250在静息时的相关性为rc = 0.58。根据HR幅度评估准确性时，当HR低于100时，所有智能手环表现良好（rc>0.90），但随着HR值升高，准确性趋于下降。
本研究表明，这三款智能手环在低强度运动期间测量HR具有较高的准确性。然而，在中等强度和高强度运动期间，这三款智能手环的表现均不太准确。需要进一步研究以找到更适合HR测量的智能手环，可用于正式心脏康复运动训练期间的精确HR监测，包括高强度和最大强度（临床试验注册号：cris.nih.go.kr/KCT0007036）。
