Development and large-scale validation of the Watch Walk wrist-worn digital gait biomarkers.

ABSTRACT: Digital gait biomarkers (including walking speed) indicate functional decline and predict hospitalization and mortality. However, waist or lower-limb devices often used are not designed for continuous life-long use. While wrist devices are ubiquitous and many large research repositories include wrist-sensor data, widely accepted and validated digital gait biomarkers derived from wrist-worn accelerometers are not available yet. Here we describe the development of advanced signal processing algorithms that extract digital gait biomarkers from wrist-worn devices and validation using 1-week data from 78,822 UK Biobank participants. Our gait biomarkers demonstrate good test-retest-reliability, strong agreement with electronic walkway measurements of gait speed and self-reported pace and signifi

SUBMITTER: Chan LLY 

PROVIDER: S-EPMC9551062 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature