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Am J Geriatr Psychiatry. 2008 Aug;16(8):697-701. doi: 10.1097/JGP.0b013e31817945f6.

Total daily activity is associated with cognition in older persons.

Author information

  • 1Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL 60612, USA. aron_s_buchman@rush.edu

Abstract

OBJECTIVES:

The authors tested the hypothesis that total daily physical activity is related to the level of cognition in older persons.

DESIGN:

Cross-sectional study.

SETTING:

Retirement communities across the Chicago metropolitan area.

PARTICIPANTS:

Five hundred twenty-one older persons without dementia.

MEASUREMENTS:

Participants underwent structured evaluation of cognition and objective measures of total daily physical activity were collected using actigraphy.

RESULTS:

In a linear regression model adjusted for age, sex, and education, total daily activity was associated with a global measure of cognition. By contrast, self-report physical activity was not associated with cognition. Further analyses showed that total daily activity was related to all five cognitive subscales.

CONCLUSIONS:

Objective measures of total daily physical activity were associated with a broad range of cognitive abilities in older persons. These findings support the link between physical activity and cognition in the elderly.

PMID:
18669949
[PubMed - indexed for MEDLINE]
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