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An Active Lifestyle Reinforces the Effect of a Healthy Diet on Cognitive Function: A Population-Based Longitudinal Study
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Stockholm University, Faculty of Social Sciences, Stress Research Institute.
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Number of Authors: 72018 (English)In: Nutrients, ISSN 2072-6643, E-ISSN 2072-6643, Vol. 10, no 9, article id 1297Article in journal (Refereed) Published
Abstract [en]

The joint effect of diet and leisure activity on cognitive function remains unknown. We aimed to verify the hypothesis that an active lifestyle reinforces the effect of the Nordic Prudent Dietary Pattern (NPDP) on cognitive function. A total of 2223 dementia-free Swedish adults aged 60 with Mini-Mental State Examination (MMSE) scores 27 were followed for an average of 6 years. MMSE was tested during follow-ups. Diet was assessed by food frequency questionnaire. The NPDP index was calculated and tertiled (low, moderate, and high adherence). Participation in physical, mental and social activities was trichotomised (low, moderate, and intense). An active lifestyle was defined based on the participation in each activity. Data were analyzed using mixed-effects models. Moderate-to-high adherence to NPDP was associated with a reduced decline in the MMSE score (: 0.19, 95% Confidence Interval (CI): 0.14-0.24). This association became stronger when combined with moderate-to-intense physical (: 0.34, 95% CI: 0.2-0.45), mental (: 0.29, 95% CI: 0.21-0.37), or social (: 0.27, 95% CI: 0.19-0.34) activities. An active lifestyle strengthened the effect of NPDP on cognitive function by two times, and further lowered risk of MMSE decline by 30%. Thus, an active lifestyle reinforces the effect of a healthy diet on preserved cognitive function, and further decreases the risk of cognitive decline.

Place, publisher, year, edition, pages
2018. Vol. 10, no 9, article id 1297
Keywords [en]
the Nordic Prudent Dietary Pattern, leisure activities, active life style, cognitive function, population-based cohort study
National Category
Gerontology, specialising in Medical and Health Sciences Nutrition and Dietetics
Identifiers
URN: urn:nbn:se:su:diva-162748DOI: 10.3390/nu10091297ISI: 000448659900170PubMedID: 30217035OAI: oai:DiVA.org:su-162748DiVA, id: diva2:1275071
Available from: 2019-01-04 Created: 2019-01-04 Last updated: 2019-01-04Bibliographically approved

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