Step Up Your Game: Do Wearable Trackers Really Move the Needle for Kids?

Abstract

The allure of wearable activity trackers has captured the attention of parents and health professionals alike. These devices promise to encourage physical activity in young people, but does the evidence support these claims? This systematic review and meta-analysis delves into the world of wearable trackers to assess their impact on daily steps and moderate-to-vigorous physical activity (MVPA) in children and adolescents. Our findings reveal insights into the effectiveness of these devices in promoting a healthier lifestyle for the next generation.

Introduction

Physical inactivity is a growing concern among children and adolescents, contributing to a host of health issues. Wearable activity trackers have emerged as potential tools to combat this problem by providing real-time feedback on physical activity levels. While these devices have gained popularity, their efficacy in promoting sustained behavior change remains unclear. This study aims to systematically evaluate the evidence on the impact of wearable activity trackers on physical activity in young people. 

Methods

We conducted a comprehensive search of four major databases for randomized controlled trials and clustered randomized controlled trials investigating the effects of wearable activity trackers on physical activity in children and adolescents. Data on participant characteristics, intervention details, and outcome measures were extracted and pooled using meta-analysis.

Results

Our analysis included 21 studies involving over 3600 participants. While wearable activity trackers significantly increased daily step counts, their effect on MVPA was less pronounced. Heterogeneity between studies was evident, suggesting that factors such as intervention design, participant characteristics, and outcome measures influence the effectiveness of these devices.

Discussion

The findings of this study indicate that wearable activity trackers can be a valuable tool for increasing daily steps in children and adolescents. However, their impact on MVPA, a crucial component of physical fitness, is less clear. Future research should explore the factors that contribute to the variability in study results and investigate the long-term effects of these devices.

Conclusion

Wearable activity trackers show promise in promoting physical activity among young people, particularly in terms of increasing daily step counts. However, their role in fostering sustained behavior change and improving overall health requires further investigation. To maximize the benefits of these devices, tailored interventions that combine wearable technology with other behavior change strategies may be necessary.

Reference

Au WW, Recchia F, Fong DY, et al. Effect of wearable activity trackers on physical activity in children and adolescents: a systematic review and meta-analysis. Lancet Digit Health. Published online August 6, 2024. doi:10.1016/S2589-7500(24)00139-0