Longitudinal Associations between Physical and Cognitive Performance among Community-Dwelling Older Adults

Magdalena I Tolea, John C Morris and James E Galvin

PLOS ONE, 2015, vol. 10, issue 4, 1-12

Abstract: To assess the directionality of the association between physical and cognitive decline in later life, we compared patterns of decline in performance across groups defined by baseline presence of cognitive and/or physical impairment [none (n = 217); physical only (n = 169); cognitive only (n = 158), or both (n = 220)] in a large sample of participants in a cognitive aging study at the Knight Alzheimer’s Disease Research Center at Washington University in St. Louis who were followed for up to 8 years (3,079 observations). Rates of decline reached 20% for physical performance and varied across cognitive tests (global, memory, speed, executive function, and visuospatial skills). We found that physical decline was better predicted by baseline cognitive impairment (slope = -1.22, p

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0122878

DOI: 10.1371/journal.pone.0122878

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