Temporal Alignment of Dual Monitor Accelerometry Recordings.

ABSTRACT: Combining accelerometry from multiple independent activity monitors worn by the same subject have gained widespread interest with the assessment of physical activity behavior. However, a difference in the real time clock accuracy of the activity monitor introduces a substantial temporal misalignment with long duration recordings which is commonly not considered. In this study, a novel method not requiring human interaction is described for the temporal alignment of triaxial acceleration measured with two independent activity monitors and evaluating the performance with the misalignment manually identified. The method was evaluated with free-living recordings using both combined wrist/hip (n = 9) and thigh/hip device (n = 30) wear locations, and descriptive data on initial offset and accumu

SUBMITTER: Brond JC 

PROVIDER: S-EPMC8309758 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature