Validity of various portable devices to measure sit-to-stand velocity and power in older adults

Autor: Samuel T. Orange, Alastair R. Jordan, James W. Metcalfe, Andreas Liefeith
Jazyk: angličtina
Rok vydání: 2020
Předmět:
ISSN: 0966-6362
Popis: Background: Movement velocity and power in a single STS are related to functional performance in older adults. Identifying accessible tools that provide valid measures of STS velocity/power would allow practitioners to evaluate physical function in clinical settings where time, space and finances are limited. Research question: Does a linear position transducer (LPT), iPhone application (App), and inertial measurement unit (IMU) obtain valid measurements of velocity and power during a single STS compared with 3D motion capture? Methods: Twenty-seven community-dwelling older adults aged ≥60 years completed a single STS test with mean velocity and power simultaneously measured with 3D motion capture, an LPT, IMU and App. Acceptable validity was established if the Pearson correlation coefficient (r) was very high (≥0.7) and bias as a standardised effect size (ES) was small (
Databáze: OpenAIRE