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The associations between dual-task walking under three different interference conditions and cognitive function
Citation
Jayakody, O and Breslin, M and Stuart, K and Vickers, JC and Callisaya, ML, The associations between dual-task walking under three different interference conditions and cognitive function, Gait and Posture, 82 pp. 174-180. ISSN 0966-6362 (2020) [Refereed Article]
Copyright Statement
Copyright 2020 Elsevier B.V. All rights reserved.
DOI: doi:10.1016/j.gaitpost.2020.08.113
Abstract
Methods: Participants (n = 91) were adults aged between 56-83 years (mean 68.8, SD 6.7). Under single- and dual-task, gait speed was obtained using a computerized mat. For the dual-task there were three conditions: 1) reciting alternate letters of the alphabet (DT-alpha); 2) counting backwards in 3 s (DT-counting); and 3) recalling words from a shopping list (DT-recall). Dual-task interference in gait and cognition were calculated as: (dual task-single task)/single task×100 and summed to obtain total interference. The cognitive domains of executive function, processing speed, working memory, verbal fluency, visuospatial function and verbal memory (recall and recognition) were assessed using a battery of neuropsychological tests. Raw test scores were subjected to principal component analysis to derive a global cognition score. Partial correlations were used to determine the strength of associations between single- and dual-task measures and cognitive scores, adjusting for age, sex and education.
Results: The strongest significant associations for each cognitive outcome variable were between greater total interference under DT-alpha and lower global cognition (r = 0.25), working memory (r = 0.28) and verbal memory [recognition] (r = 0.21), greater gait interference under DT-alpha and slower processing speed (r = 0.43) and single-task gait speed and verbal fluency (r = 0.23). Associations between dual-task measures and cognition were generally weaker under the DT-counting and DT-recall.
Significance: Calculating total and gait interference during DT-alpha may be the most useful in order to identify adults with poorer cognition.
Item Details
Item Type: | Refereed Article |
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Keywords: | cognition, dementia, dual-task walking, gait, primary health care |
Research Division: | Health Sciences |
Research Group: | Health services and systems |
Research Field: | Primary health care |
Objective Division: | Health |
Objective Group: | Specific population health (excl. Indigenous health) |
Objective Field: | Health related to ageing |
UTAS Author: | Jayakody, O (Ms Shanika Jayakody Arachchige Dona) |
UTAS Author: | Breslin, M (Dr Monique Breslin) |
UTAS Author: | Stuart, K (Miss Kimberley Stuart) |
UTAS Author: | Vickers, JC (Professor James Vickers) |
UTAS Author: | Callisaya, ML (Dr Michele Callisaya) |
ID Code: | 140993 |
Year Published: | 2020 |
Web of Science® Times Cited: | 2 |
Deposited By: | Menzies Institute for Medical Research |
Deposited On: | 2020-09-17 |
Last Modified: | 2020-10-14 |
Downloads: | 0 |
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