Climstein Mike, Alder Jessica L, Brooker Alyce M, Cartwright Elissa J, Kemp-Smith Kevin, Simas Vini, Furness James
Clinical Exercise Physiology, School of Health and Human Sciences, Southern Cross University, Bilinga, QLD 4225, Australia.
Physical Activity, Lifestyle, Ageing and Wellbeing, Faculty Research Group, Faculty of Health Sciences, The University of Sydney, Lidcombe, NSW 2006, Australia.
Sports (Basel). 2020 Aug 23;8(9):117. doi: 10.3390/sports8090117.
Usage of wrist-worn activity monitors has rapidly increased in recent years, and these devices are being used by both fitness enthusiasts and in clinical populations. We, therefore, assessed the test-retest reliability of the Polar Vantage M (PVM) watch when measuring heart rate (HR) during various treadmill exercise intensities.
HR was measured every 30 s (simultaneous electrocardiography (ECG) and PVM). Test-retest reliability was determined using an intraclass correlation coefficient (ICC) with 95% confidence intervals (CIs). Standard error of measurement (SEM) and smallest real difference (SRD) were used to determine measurement variability.
A total of 29 participants completed the trials. ICC values for PVM during stages 1, 2 and 5 demonstrated good to excellent test-retest reliability (0.78, 0.78 and 0.92; 95% CI (0.54-0.90, 0.54-0.9, 0.79-0.97)). For PVM during stages 0 (rest), 3 and 4, the ICC values indicated poor to good reliability (0.42, 0.68 and 0.58; 95% CI (-0.27-0.73, 0.32-0.85, 0.14-0.80)).
This study identified that the test-retest reliability of the PVM was comparable at low and high exercise intensities; however, it revealed a poor to good test-retest reliability at moderate intensities. The PVM should not be used in a clinical setting where monitoring of an accurate HR is crucial to the patients' safety.
近年来，腕戴式活动监测器的使用迅速增加，健身爱好者和临床人群都在使用这些设备。因此，我们评估了 Polar Vantage M（PVM）手表在不同跑步机运动强度下测量心率（HR）时的重测信度。
每 30 秒测量一次心率（同步心电图（ECG）和 PVM）。使用组内相关系数（ICC）和 95%置信区间（CI）确定重测信度。测量标准误（SEM）和最小真实差异（SRD）用于确定测量变异性。
共有 29 名参与者完成了试验。PVM 在第 1、2 和 5 阶段的 ICC 值显示出良好至优秀的重测信度（0.78、0.78 和 0.92；95%CI（0.54 - 0.90，0.54 - 0.9，0.79 - 0.97））。对于 PVM 在第 0 阶段（休息）、3 和 4 阶段，ICC 值表明信度较差至良好（0.42、0.68 和 0.58；95%CI（-0.27 - 0.73，0.32 - 0.85，0.14 - 0.80））。
本研究发现，PVM 在低强度和高强度运动时的重测信度相当；然而，在中等强度时，其重测信度较差至良好。在对患者安全至关重要的准确心率监测的临床环境中，不应使用 PVM。
