Comparison of heart rate measured by Polar RS400 and ECG, validity and repeatability
Comparison of heart rate measured by Polar RS400 and ECG, validity and repeatability
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DOI：
10.3109/14038196.2012.694118
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发表时间：
2012-01-01
影响因子：
1.4
通讯作者：
Wisen, Anita
中科院分区：
文献类型：
--
作者：
Engstrom, Elise;Ottosson, Elin;Wisen, Anita
目的：本研究的目的是研究心率监测仪Polar Rs400与心电图的标准相关效度和重测重复性。方法：10名健康受试者，年龄19~34岁，分别在50、100和150W的负荷下进行5min的功率自行车测试。心率(HR)用心电图仪和Polar Rs400测量并数字化记录。休息至少一个小时后，重复测试。主要发现：心电图测量的心率与Polar Rs400测量的心率有显著的相关性，相关系数在0.97~1.00之间。在测试1中，心率极点与心率心电之间的平均标准差为0.7+/-4.3次/分，在测试2中，平均差为0.2+/-3.2次/分。重复试验中，试验2与试验1+/-2SD的心率差值分别为3.2+/-11.9次/分和2.6+/-14.3次/分，差异无统计学意义。结论：Polar Rs400具有良好的效标相关效度和重测重复性。在个体水平观察到的差异应该被注意到，但不被认为是临床上重要的。因此，Polal RS400非常适合在体力活动和运动训练期间记录心率。
Aims: The purpose of this study was to investigate criterion-related validity and test-retest repeatability of the heart rate monitor Polar RS400 versus electrocardiogram (ECG). Methodology: Ten healthy subjects, 19-34 years, performed a cycle ergometer test 5 min on each load (50, 100 and 150 W). Heart rate (HR) was measured with ECG and Polar RS400 and recorded digitally. After at least one hour resting the test was repeated. Major findings: The results showed a significant correlation between HR measured by ECG and by Polar RS400 with correlation coefficients ranging from 0.97 to 1.00. In test 1 the mean difference +/- 2SD between HR Polar and HR ECG was 0.7 +/- 4.3 bpm and in test 2, 0.2 +/- 3.2 bpm. In the repeated tests, the mean difference of HR between test 2 and test 1 +/- 2SD was 3.2 +/- 11.9 bpm with ECG and 2.6 +/- 14.3 bpm with Polar RS400 and these differences were not statistically significant. Conclusion: This study indicates good criterion- related validity and test-retest repeatability of Polar RS400. Differences observed at individual levels should be noticed, but are not considered to be clinically important. Polar RS400 is thus well suited for recording HR during physical activity and exercise training.