NDLI: Gait speed and cognitive decline over 2 years in the Ibadan study of aging.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Ojagbemi, Akin D'Este, Catherine Verdes, Emese Chatterji, Somnath Gureje, Oye
Spatial Coverage	Nigeria
Description	Country affiliation: Nigeria Author Affiliation: Ojagbemi A ( WHO Collaborating Centre for Research and Training in Mental Health, Neuroscience and Substance Abuse, Department of Psychiatry, College of Medicine, University of Ibadan, P.M.B. 5017 (GPO), Ibadan, Nigeria.); D'Este C ( National Centre for Epidemiology and Population Health, Research School of Population Health, ANU College of Medicine, Biology and Environment, The Australian National University, Building 62 Mills Road, Canberra ACT 0200, Australia.); Verdes E ( Department of Health Statistics and Informatics at the World Health Organization (WHO), 20 Avenue Appia, Geneva 1207 CH-1211, Switzerland.); Chatterji S ( Department of Health Statistics and Informatics at the World Health Organization (WHO), 20 Avenue Appia, Geneva 1207 CH-1211, Switzerland.); Gureje O ( WHO Collaborating Centre for Research and Training in Mental Health, Neuroscience and Substance Abuse, Department of Psychiatry, College of Medicine, University of Ibadan, P.M.B. 5017 (GPO), Ibadan, Nigeria. Electronic address: ogureje@comui.edu.ng.)
Abstract	BACKGROUND: The evidence suggesting that gait speed may represent a sensitive marker for cognitive decline in the elderly requires support from diverse racial groups. OBJECTIVE: We investigated the relationship between gait speed and cognitive decline over 2 years in a community dwelling sample of elderly Africans. METHODS: Data are from the Ibadan study of aging (ISA) conducted among a household multi-stage probability sample of 2149 Yoruba Nigerians aged 65 years or older. Gait speed was measured as the time taken to complete a 3 or 4m distance at normal walking speed. We assessed cognitive functions with a modified version of the 10-word learning list and delay recall test, and examined the relationship between baseline gait speed, as well as gait speed changes, and follow-up cognition using multiple linear regression and longitudinal analyses using random effects. RESULTS: Approximately 71% of 1461 participants who were dementia free and who had their gait speed measured at baseline (2007) were successfully followed up in two waves (2008 and 2009). Along with increasing age, poor health and economic status, a slower baseline gait speed was independently associated with poorer follow-up cognition in both linear regression (1.2 words, 95% CI=0.48-2.0) and longitudinal analyses (0.8 words, 95% CI=0.44-1.2). Also, a greater change in gait speed between 2007 and 2009 was associated with the worst follow-up cognition (0.3 words, 95% CI=0.09-0.51). CONCLUSION: The finding that a substantial change in gait speed was associated with reduced cognitive performance is of potential importance to efforts aimed at early identification of cognitive disorders in this population.
File Format	HTM / HTML
ISSN	09666362
e-ISSN	18792219
DOI	10.1016/j.gaitpost.2015.01.011
Journal	Gait & Posture
Issue Number	2
Volume Number	41
Language	English
Publisher	Elsevier
Publisher Date	2015-02-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Research Support, Non-u.s. Gov't Discipline Orthopedics Gait Complications Cognition Gait Disorders, Neurologic Epidemiology Physiopathology Cognition Disorders Etiology Aging Physiology Retrospective Studies Nigeria
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Rehabilitation Biophysics Sports Science

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