Walking-speed estimation using a single inertial measurement unit for the older adults.

ABSTRACT: BACKGROUND:Although walking speed is associated with important clinical outcomes and designated as the sixth vital sign of the elderly, few walking-speed estimation algorithms using an inertial measurement unit (IMU) have been derived and tested in the older adults, especially in the elderly with slow speed. We aimed to develop a walking-speed estimation algorithm for older adults based on an IMU. METHODS:We used data from 659 of 785 elderly enrolled from the cohort study. We measured gait using an IMU attached on the lower back while participants walked around a 28 m long round walkway thrice at comfortable paces. Best-fit linear regression models were developed using selected demographic, anthropometric, and IMU features to estimate the walking speed. The accuracy of the algorithm was ve

SUBMITTER: Byun S 

PROVIDER: S-EPMC6932800 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature