Children’s compliance with wrist worn accelerometry within a cluster randomised controlled trial: Findings from The Healthy Lifestyles Programme
Pediatric Exercise Science
© 2018 Human Kinetics
Purpose: To assess children’s compliance with wrist worn accelerometry during a randomised control trial and to examine whether compliance differed by allocated condition or gender. Method: 886 children within the Healthy Lifestyles Programme (HeLP) trial were randomly allocated to wear a GENEActiv accelerometer at baseline and 18 month follow up. Compliance with minimum wear time criteria (≥10 hours for 3 week, 1 weekend day) was obtained for both time points. Chi- squared tests were used to determine associations between compliance, group allocation and gender. Results: At baseline, 851 children had useable data, 830 (97.5%) met the minimum wear time criteria, 631 (74.1%) had data for 7 days at 24 hours/day. At follow up, 789 children had useable data, 745 (94.4%) met the minimum wear time criteria, 528 (67%) children had complete data. Compliance did not differ by gender (baseline; X2 = 1.66, p = 0.2, follow up; X2 = 0.76, p = 0.4) or by group at follow up (X2 = 2.35, p = 0.13). Conclusion: The use of wrist worn accelerometers and robust trial procedures resulted in high compliance at two time points regardless of group allocation, demonstrating the feasibility of usingprecise physical activity monitors to measure intervention effectiveness.
This research was supported by a grant PHR project 10/3010/01 from the National Institute for Health Research (NIHR) Public health research programme. In addition, this research was supported and funded by the NIHR Collaboration for Leadership in Applied Health Research and Care South West Peninsula (PenCLAHRC).
This is the author accepted manuscript. The final version is available from Human Kinetics via the DOI in this record
Published online 8 February 2018