| Activity Participation and Cognitive Aging from Age 50 to 80 in the Glostrup 1914 Cohort. | |
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MedLine Citation:
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PMID: 23035883 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVES: To examine the cognitively protective effect of leisure and physical activities while accounting for prior cognitive ability, a rarely considered confounder of the previously reported associations between activity and cognitive aging. DESIGN: Longitudinal cohort study. SETTING: Glostrup, Denmark. PARTICIPANTS: Community-dwelling sample of adults recruited into the Glostrup 1914 Cohort (baseline N = 802). All were born in 1914 and were assessed at ages 50, 60, 70, and 80. New participants were recruited during the study to counter attrition. MEASUREMENTS: On each occasion, cognitive ability was assessed using four tests, which defined a general cognitive ability score. Self-reported participation in leisure and physical activities was also collected. In general, physical activity was summarized on a 3- or 4-point scale, and leisure activity as none versus some (ages 50 and 60) or according to participation in a list of common activities (age 70). The effect of activity-leisure and physical-on the level of cognitive ability and cognitive change over time from age 60 to 80 was examined in growth curve models. RESULTS: Greater activity (leisure or physical) was consistently associated with a higher level of cognitive ability. Adjusting for baseline cognitive ability (age 50) attenuated these associations, suggesting that associations between activity and cognition reported in old age are largely a consequence of preserved differentiation. A small but significant association remained between greater physical activity at age 60 or 70 and less cognitive decline. CONCLUSION: The association between more-frequent leisure activity and less cognitive decline mainly reflects the positive cross-sectional association between activity and cognition, although the link that remains between greater physical activity and a more-successful cognitive aging trajectory is of particular relevance to those who are developing interventions. |
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Authors:
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Alan J Gow; Erik L Mortensen; Kirsten Avlund |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-4 |
Journal Detail:
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Title: Journal of the American Geriatrics Society Volume: - ISSN: 1532-5415 ISO Abbreviation: J Am Geriatr Soc Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-5 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503062 Medline TA: J Am Geriatr Soc Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2012, Copyright the Authors Journal compilation © 2012, The American Geriatrics Society. |
Affiliation:
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Section of Social Medicine, University of Copenhagen, Copenhagen, Denmark; Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark; Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh, Edinburgh, UK. |
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