Comparison of Accelerometry-Based Measures of Physical Activity: Retrospective Observational Data Analysis Study.

ABSTRACT:

Background

Given the evolution of processing and analysis methods for accelerometry data over the past decade, it is important to understand how newer summary measures of physical activity compare with established measures.

Objective

We aimed to compare objective measures of physical activity to increase the generalizability and translation of findings of studies that use accelerometry-based data.

Methods

High-resolution accelerometry data from the Baltimore Longitudinal Study on Aging were retrospectively analyzed. Data from 655 participants who used a wrist-worn ActiGraph GT9X device continuously for a week were summarized at the minute level as ActiGraph activity count, monitor-independent movement summary, Euclidean norm minus one, mean amplitude deviation, and ac

SUBMITTER: Karas M 

PROVIDER: S-EPMC9356340 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature