The Validation of a Pocket Worn Activity Tracker for Step Count and Physical Behavior in Older Adults during Simulated Activities of Daily Living.

ABSTRACT:

Purpose

The purpose of this study was to validate optimized algorithm parameter settings for step count and physical behavior for a pocket worn activity tracker in older adults during ADL. Secondly, for a more relevant interpretation of the results, the performance of the optimized algorithm was compared to three reference applications.

Methods

In a cross-sectional validation study, 20 older adults performed an activity protocol based on ADL with MOX_MissActivity versus MOX_Annegarn, activPAL, and Fitbit. The protocol was video recorded and analyzed for step count and dynamic, standing, and sedentary time. Validity was assessed by percentage error (PE), absolute percentage error (APE), Bland-Altman plots and correlation coefficients.

Results

For st

SUBMITTER: Ummels D 

PROVIDER: S-EPMC7545746 | biostudies-literature | 2020 Jan-Dec

REPOSITORIES: biostudies-literature