A COMPARISON STUDY OF THREE DIFFERENT HEART RATE MONITORING DEVICES
Keywords:heart rate, Chest Strap Heart Rate Sensor (Polar) , Low-Cost Smart Watch (Watch) , Heart Rate Plus Mobile Application (App)
Heart rate (HR) monitoring during resting and exercises has been widely used as an indicator of cardiorespiratory or aerobic fitness. Presently, there has been a large increase in the number of wearable devices that use to measure HR such as smart watch and mobile application. With technological advancement, the cost of these devices is reduced. However, some models are still not precise for estimating HR. Therefore, the purpose of this study was to compare and assess validity of three HR monitoring devices; chest strap heart rate sensor (Polar), low-cost smart watch (Watch), and Heart Rate Plus mobile application (App). HR measurement was recorded in 1 minute (average, maximum, and minimum) following recording ranges: (1) resting state, (2) after 15 repetitions of Jumping Jack, (3) after 2 minutes rest, (4) after 15 repetitions of Jumping Jack, (5) after 2 minutes rest. The HR values from 3 instruments were statistically different in every recording range by using Friedman. When evaluated validity of the HR values compared to Polar across all recording ranges, the standardize typical error of estimates were 3.74-79.60 and 0.16-2.09 for Watch and App, respectively. In addition, Bland Altman plot was described a comparison of HR values between Polar and Watch and Polar and App. The difference between Polar and Watch distributed outside the area of the mean difference line (abnormally distributed). The difference between Polar and App distributed in the area of the mean difference line (normally distributed). The percentage difference between Watch and App heart rate values compared to Polar heart rate values is shown in terms of the percentage change. Consequently, this study can provide information to choose the HR measurement. Watch might not be valid for monitoring exercise. App is valid for monitoring resting state, but not portable and easy to use in exercise.
(Journal of Sports Science and Technology 2022; 22 (2): 104-120))
(Received: 11 April 2022, Revised: 17 August 2022, Accepted: 25 August 2022)
Keyword: Heart Rate /Chest Strap Heart Rate Sensor (Polar) / Low-Cost Smart Watch (Watch) /
Heart Rate Plus Mobile Application (App)
*Corresponding Author: Kittichai Tharawadeepimuk
College of Sports Science and Technology, Mahidol University, Nakhon Pathom, Thailand 73170
E-mail: email@example.com Tel. 081-037-6595
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