title: Multidirectional walk test in individuals with Parkinson's disease: a validity study.
abstract: Gait parameters of forward, backward, and sideways walk were studied when the participants walked overground in four directions at their self-selected speed and were compared with walking in the four directions on an instrumented GAITRite walkway. Intraclass correlation coefficients between the overground walk test measures and the instrumented walkway measures of gait speed, cadence, and stride length for the forward walk were 0.85, 0.88, and 0.87, respectively. For the backward walk, the coefficients were 0.91 for gait speed, 0.75 for cadence, and 0.93 for stride length. For the sideways walk, the coefficients were 0.92 for gait speed, 0.93 for cadence, and 0.94 for stride length. Gait parameters of forward, backward, and sideways walk obtained by the overground walk test had excellent agreement with those obtained by the instrumented walkway. The quick timed test provided quantitative data for gait evaluation and was valid for clinical use.
authors.affiliation: aResearch Service, Michael E. DeBakey Veterans Affairs Medical Center, Baylor College of Medicine bDepartment of Physical Medicine and Rehabilitation cDepartment of Health and Human Performance, University of Houston dParkinson's Disease Research Education and Clinical Center, Michael E. DeBakey Veterans Affairs Medical Center eNeurology, Baylor College of Medicine, Houston, Texas, USA.
authors.forename: Mon S
authors.initials: MS
authors.lastname: Bryant
authors.forename: Craig D
authors.initials: CD
authors.lastname: Workman
authors.forename: George R
authors.initials: GR
authors.lastname: Jackson
mesh_terms: D000368:Aged; D005260:Female; D005684:Gait; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000534:rehabilitation*