Concurrent validity of accelerometry to measure gait in Parkinsons disease

Lord, Sue, Rochester, Lynn, Baker, Katherine and Nieuwboer, Alice (2008) Concurrent validity of accelerometry to measure gait in Parkinsons disease. Gait & Posture, 27 (2). pp. 357-359. ISSN 0966-6362

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Official URL: http://dx.doi.org/10.1016/j.gaitpost.2007.04.001

Abstract

The Vitaport Activity Monitor (VAM) is an ambulatory monitoring device that uses accelerometer signals to assess the quality and quantity of walking and mobility related activities in home and community. The objective of this study was to investigate the concurrent validity of the VAM and GAITRite® to measure gait speed, step length and step frequency during a test of functional gait that included single, dual and multiple task components for 12 people with Parkinsons Disease (PD) and 11 comparisons participating. For PD participants, ICCs were excellent for all gait variables (ICC (2, 2) = 0.92–0.99, p ? 0.0001). For control participants, ICCs were good to excellent for all gait variables (ICC (2, 2) = 0.74–0.94, p ? 0.05). Mean score differences between the two instruments were greatest for step frequency for both PD and comparisons. The VAM is useful for objective gait measurement in the home and community.

Item Type: Article
Uncontrolled Keywords: Validity, parkinsons Disease, gait, measurement, accelerometry
Subjects: B900 Others in Subjects allied to Medicine
C600 Sports Science
Department: Faculties > Health and Life Sciences > School of Health, Community and Education Studies > Public Health and Wellbeing
Depositing User: EPrint Services
Date Deposited: 17 Sep 2009 14:33
Last Modified: 10 Aug 2015 11:43
URI: http://nrl.northumbria.ac.uk/id/eprint/2999

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