Graveson, J, Bauermeister, S, McKeown, D et al. (1 more author) (2016) Intraindividual reaction time variability, falls, and gait in old age: A systematic review. Journals of Gerontology: Series B, 71 (5). pp. 857-864. ISSN 1079-5014
Abstract
Objectives: Intraindividual variability (IIV) refers to the variation in reaction time (RT) performance across a given cognitive task. As greater IIV may reflect compromise of the frontal circuitry implicated in falls and gait impairment in older adults, we conducted a systematic review of the literature relating to this issue. Methods: Searches were conducted of electronic databases that identified empirical investigations of IIV, falls, and gait in older adult samples with a mean age of 65 years or older. Data were extracted relating to IIV measures, study population, and outcomes.Results: Of 433 studies initially identified, 9 met inclusion criteria for IIV and falls (n = 5), and gait (n = 4). Representing a total of 2,810 older participants, all of the studies of IIV and falls showed that elevated variability was associated with increased risk of falling, and half of the studies of gait indicated greater IIV was related to gait impairment. Discussion: Across studies, IIV measures were consistently associated with falls in older persons and demonstrated some potential in relation to gait. IIV metrics may, therefore, have considerable potential in clinical contexts and supplement existing test batteries in the assessment of falls risk and gait impairment in older populations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author 2015. Published by Oxford University Press on behalf of The Gerontological Society of America. This is a pre-copyedited, author-produced PDF of an article accepted for publication in Journals of Gerontology, Series B following peer review. The version of record Graveson, J, Bauermeister, S, McKeown, D and Bunce, D (2015) Intraindividual reaction time variability, falls, and gait in old age: A systematic review. Journals of Gerontology, Series B is available online at: http://dx.doi.org/10.1093/geronb/gbv027. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Cognition; Developmental change; Falls; Life course; Mobility problems |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Psychology (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Oct 2015 10:28 |
Last Modified: | 28 Oct 2016 15:26 |
Published Version: | http://dx.doi.org/10.1093/geronb/gbv027 |
Status: | Published |
Publisher: | Oxford University Press |
Identification Number: | 10.1093/geronb/gbv027 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:86930 |