Kinematic Biomarkers of Functional Disability in Older Adults: Analysis of the Timed Up and Go Test.

ABSTRACT: The Timed Up and Go (TUG) test is used to assess mobility in older adults, but its reliance on completion time limits its insight into detailed movement patterns that could serve as early indicators of functional decline. This study aimed to identify lower limb and trunk kinematic biomarkers during the TUG test that distinguish between older adults with and without functional disability, emphasizing the potential for wearable sensor applications. Sixty adults aged 60+ participated in this cross-sectional study. Three-dimensional lower limb and trunk range of motion (ROM), velocity, center of mass (CoM) displacement, and velocity were analyzed using an optoelectronic system across TUG subphases: sit-to-walk, walk-forward, turn, walk-back, and turn-to-sit. Principal component analysis identi

SUBMITTER: Moreira J 

PROVIDER: S-EPMC12467501 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature