Examining the Association Between Quadriceps Strength and Cognitive Performance in the Elderly.

Abstract:

:Emerging evidences showed impaired muscle strength was prevalent in older adults with mild cognition impairment or dementia. However, little was known about the role of quadriceps strength in the cognition decline among older population. The objective of our study was to investigate the relation between quadriceps strength and cognitive performance. Using data from the National Health and Nutrition Examination Survey (1999-2002), a total of 1799 participants aged ≥60 years were enrolled in the study. Every subject completed a household interview, digit symbol substitution test (DSST), physical performances, and a questionnaire regarding personal health. Estimation of relationship between quadriceps strength and cognition was using multiple linear regression and quartile-based analysis with an extended-model approach for covariates adjustment. In a model adjusted for demographics, chronic diseases, health behaviors, and levels of folate and vitamin B12, the level of quadriceps strength was significantly associated with the scores of DSST. The β coefficient interpreted as change of DSST scores for each Newton increment in quadriceps strength comparing participants in the highest quartile of quadriceps strength to those in the lowest quartile was 5.003 (95% confidence interval, 2.725-7.281, P < 0.001). The trends of incremental DSST score across increasing quartiles of quadriceps strength were statistically significant (all P for trend <0.001). Higher quadriceps strength was associated with better cognitive performance.

journal_name

Medicine (Baltimore)

journal_title

Medicine

authors

Chen WL,Peng TC,Sun YS,Yang HF,Liaw FY,Wu LW,Chang YW,Kao TW

doi

10.1097/MD.0000000000001335

subject

Has Abstract

pub_date

2015-08-01 00:00:00

pages

e1335

issue

32

eissn

0025-7974

issn

1536-5964

pii

00005792-201508020-00040

journal_volume

94

pub_type

杂志文章

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