The Functional Gait Assessment in Older Adults: Validation Through Rasch Modeling

Physical Therapy
Marianne Beninato, Larry H Ludlow

Abstract

The Functional Gait Assessment (FGA), a measure of walking balance ability, was developed to eliminate the ceiling effect observed in the Dynamic Gait Index (DGI). Three presumably more difficult tasks were added and 1 easier task was removed from the original 8 DGI tasks. The effects of these modifications on item hierarchy have not previously been analyzed. The purpose of this study was to determine: (1) the ordering of the 10 FGA tasks and the extent to which they map along a clinically logical difficulty continuum, (2) whether the spread of tasks is sufficient to measure patients of varying functional ability levels without a ceiling effect, (3) where the 3 added tasks locate along the task difficulty continuum, and (4) the psychometric properties of the individual FGA tasks. A retrospective chart review was conducted. Functional Gait Assessment scores from 179 older adults referred for physical therapy for balance retraining were analyzed by Rasch modeling. The FGA task hierarchy met clinical expectations, with the exception of the "walking on level" task, which locates in the middle of the difficulty continuum. There was no ceiling effect. Two of the 3 added tasks were the most difficult FGA tasks. Performance on the most...Continue Reading

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Citations

May 9, 2018·Orthopedics·Christos Th VottisAndreas F Mavrogenis
Aug 8, 2018·Clinical Rehabilitation·Maijke Van BloemendaalAnita Beelen
Mar 8, 2020·Brazilian Journal of Physical Therapy·Renata Noce KirkwoodBruno de Souza Moreira
Mar 7, 2021·Journal of Neurologic Physical Therapy : JNPT·Caitlin E DeomJames A Sliwa
Jun 27, 2020·Brazilian Journal of Physical Therapy·Larissa Bragança Falcão MarquesRenata Noce Kirkwood
Mar 24, 2021·Acta Neurologica Scandinavica·Yasutaka NikaidoRyuichi Saura
Apr 20, 2021·Geriatrics & Gerontology International·Satoru EbiharaMidori Miyagi

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