@misc{10481/91157,
year = {2024},
month = {3},
url = {https://hdl.handle.net/10481/91157},
abstract = {The purposes were to examine the criterion-related validity of the steps estimated by consumer-wearable activity trackers (wristworn activity trackers: Fitbit Ace 2, Garmin Vivofit Jr, and Xiomi Mi Band 5; smartphone applications: Pedometer, Pedometer Pacer Health, and Google Fit/Apple Health) and their comparability in primary schoolchildren under controlled conditions. An initial sample of 66 primary schoolchildren (final sample = 56; 46.4% females), aged 9-12 years old (mean = 10.4 ± 1.0 years), wore three wrist-worn activity trackers (Fitbit Ace 2, Garmin Vivofit Jr 2, and Xiaomi Mi Band 5) on their non-dominant wrist and had three applications in two smartphones (Pedometer, Pedometer Pacer Health, and Google Fit/Apple Health for Android/iOS installed in Samsung Galaxy S20+/iPhone 11 Pro Max) in simulated front trouser pockets. Primary schoolchildren’s steps
estimated by the consumer-wearable activity trackers and the video-based counting independently by two researchers (gold standard) were recorded while they performed a 200-meter course in slow, normal and brisk pace walking, and running conditions. Results showed that the criterion-related validity of the step scores estimated by the three Samsung applications and the Garmin Vivofit Jr 2 were good-excellent in the four walking/running conditions (e.g., MAPE = 0.6 - 2.3%; lower 95% CI of the ICC = 0.81 - 0.99), as well as being comparable. However, the Apple applications, Fitbit Ace 2, and Xiaomi Mi Band 5 showed poor criterion-related validity and comparability on some walking/running conditions (e.g., lower 95% CI of the ICC < 0.70). Although, as in real life primary schoolchildren also place their smartphones in other parts (e.g., schoolbags, hands or even somewhere away from the body), the criterion-related validity of the Garmin Vivofit Jr 2 potentially would be considerably higher than that of the Samsung applications. The findings of the present study highlight the potential of the Garmin Vivofit Jr 2 for monitoring primary schoolchildren’s steps under controlled conditions.},
organization = {I + D + I Fit-Person project (Reference: PID2019110179GB-100), funded
by the MCIN/AEI/10.13039/501100011033},
publisher = {Journal of Sports Science and Medicine},
keywords = {Validation},
keywords = {Wrist-worn activity trackers},
keywords = {Smartphone applications},
title = {Criterion-Related Validity of Consumer-Wearable Activity Trackers for Estimating Steps in Primary Schoolchildren under Controlled Conditions: Fit-Person Study},
doi = {10.52082/jssm.2024.79},
author = {Mayorga-Vega, Daniel and Casado Robles, Carolina and Guijarro Romero, Santiago and Viciana Ramírez, Jesús},
}