Leisure activity, health, and medical correlates of neurocognitive performance among monzygotic twins: The Older Australian Twins Study

Lee, Teresa, Lipnicki, Darreb M., Crawford, John D., Henry, Julie D., Trollnor, Julian N., Ames, David and Wright, Margaret J. (2013) Leisure activity, health, and medical correlates of neurocognitive performance among monzygotic twins: The Older Australian Twins Study. The Journals of Gerontology. Series B: Psychological Sciences and Social Sciences, 69 4: 514-522. doi:10.1093/geronb/gbt031


Author Lee, Teresa
Lipnicki, Darreb M.
Crawford, John D.
Henry, Julie D.
Trollnor, Julian N.
Ames, David
Wright, Margaret J.
Title Leisure activity, health, and medical correlates of neurocognitive performance among monzygotic twins: The Older Australian Twins Study
Journal name The Journals of Gerontology. Series B: Psychological Sciences and Social Sciences   Check publisher's open access policy
ISSN 1079-5014
1758-5368
Publication date 2013-05-13
Year available 2013
Sub-type Article (original research)
DOI 10.1093/geronb/gbt031
Open Access Status DOI
Volume 69
Issue 4
Start page 514
End page 522
Total pages 9
Place of publication Cary, NC United States
Publisher Oxford University Press
Collection year 2014
Language eng
Formatted abstract
Objectives. We aimed to examine associations between each of three leisure activities (Cognitive, Physical, and Social) and performance in selected cognitive domains (Speed, Memory, Verbal ability, and Executive functions) and global cognition. We also aimed to explore associations between medical and health factors and late-life cognition.

Method. Our sample comprised 119 pairs of monozygotic twins from the Older Australian Twins Study. Their mean age was 71 years and 66% were women. We used a discordant co-twin design, with cognitive performance measures as dependent variables and leisure activities as independent variables. Multiple regression analyses were performed, adjusting for potentially relevant medical and health factors.

Results. Discordance in Cognitive Activity and Social Activity participation was positively associated with discordance in performance on some cognitive domains. There were no associations between Physical Activity participation and cognition. Discordance in several cardiovascular, frailty, and sensory variables was associated with discordance in cognitive performance measures.

Discussion. This study identified lifestyle and health-related influences on late-life cognition. Our findings not only help in understanding the neurobiological mechanisms, they also have practical implications for interventions to prevent or slow age-related cognitive decline. 
Keyword Aging
Cognition
Health
Leisure activity
Twins
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Psychology Publications
 
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Created: Thu, 27 Mar 2014, 18:49:54 EST by Mrs Alison Pike on behalf of School of Psychology