Type

Journal Article

Authors

Isabelle Killane
Rose Anne Kenny
Richard Reilly
Orna Donoghue
Hilary Cronin

Subjects

Psychiatry

Topics
sustained attention association study linear models 50 years older people executive function neuropsychological tests community dwelling older adults

Relative Association of Processing Speed, Short-Term Memory and Sustained Attention With Task on Gait Speed: A Study of Community-Dwelling People 50 Years and Older. (2014)

Abstract For single gait tasks, associations have been reported between gait speed and cognitive domains. However, few studies have evaluated if this association is altered in dual gait tasks given gait speed changes with complexity and nature of task. We evaluated relative contributions of specific elements of cognitive function (including sustained attention and processing speed) to dual task gait speed in a nationally representative population of community-dwelling adults over 50 years. METHODS: Gait speed was obtained using the GaitRite walkway during three gait tasks: single, cognitive (alternate letters), and motor (carrying a filled glass). Linear regression models, adjusted for covariates, were constructed to predict the relative contributions of seven neuropsychological tests to gait speed differences and to investigate gait task effects. RESULTS: The mean age and gait speed of the population (n = 4,431, 55% women) was 62.4 years (SD = 8.2) and 135.85 cm/s (SD = 20.20, single task), respectively. Poorer processing speed, short-term memory, and sustained attention were major cognitive contributors to slower gait speed for all gait tasks. Both dual gait tasks were robust to covariate adjustment and had a significant additional executive function element not found for the single gait task. CONCLUSIONS: For community-dwelling older adults processing speed, short-term memory and sustained attention were independently associated with gait speed for all gait tasks. Dual gait tasks were found to highlight specific executive function elements. This result forms a baseline value for dual task gait speed.
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Full list of authors on original publication

Isabelle Killane, Rose Anne Kenny, Richard Reilly, Orna Donoghue, Hilary Cronin

Experts in our system

1
Isabelle Killane
Royal College of Surgeons in Ireland
Total Publications: 14
 
2
Rose Anne Kenny
Trinity College Dublin
Total Publications: 252
 
3
Richard Reilly
Trinity College Dublin
Total Publications: 195
 
4
Orna A Donoghue
Trinity College Dublin
 
5
Hilary Cronin
Trinity College Dublin
Total Publications: 40