Geriatric Medicine

Activity Energy Expenditure and Incident Cognitive Impairment in Older Adults

Middleton LE, Manini TM, Simonsick EM, et al (Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Univ of Florida, Gainesville; Natl Inst on Aging, Bethesda, MD; et al) Arch Intern Med 171:1251-1257, 2011^§

Abstract

Background

Studies suggest that physically active people have reduced risk of incident cognitive impairment in late life. However, these studies are limited by reliance on self-reports of physical activity, which only moderately correlate with objective measures and often exclude activity not readily quantifiable by frequency and duration. The objective of this study was to investigate the relationship between activity energy expenditure (AEE), an objective measure of total activity, and incidence of cognitive impairment.

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