Background: This study examined the accuracy of commercial wearable devices (e.g., Apple Watch) in measuring physical activity at different intensities by comprehensively reviewing the literature. Methods: Two electronic databases, including Google Scholar, and PubMed, were searched up to June 2022. Selection criteria included: (1) Studies were conducted using Apple Watch as a tool for measuring physical activity parameters (such as time spent in sedentary behavior, light-intensity, and moderate to high-intensity physical activities); (2) An objective instrument such as an accelerometer was utilized for checking the accuracy of physical activity measurements. Exclusion criteria: (1) Studies did not examine the validation of any physical activity parameter; (2) Studies did determine the intensity of physical activity. Results: A total of 13 studies met the inclusion criteria (sedentary behavior [n=1], light activity [n=5], and moderate to high-intensity activity [n=12]);. Among the included 13 studies, Apple Watch was validated for sedentary behavior in one study (1/1), light activity (four out of five), and moderate-to-high intensity activity (ten out of twelve), respectively. Conclusion: The evidence showed that most of the included studies suggest the Apple Watch is acceptable and for accurately measuring physical activity at different intensities. And it can be used not only as an instrument for self-health management but also as a tool for monitoring the prevalence of physical activity in large-scale populations.

Authors:
Chao-huei Shao, National Chung-hsing University, Taiwan

About the Presenter(s)
CHAO-Huei Shao is a master degree student at the Graduate School of Sports and Health Management at National Chung Hsing University in Taiwan. She is currently interested in physical activity, and sedentary behavior, and hopes to study in these area.

Connect on Linkedin
https://www.linkedin.com/mwlite/in/christine-shao-a314b3227

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