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Association between Handgrip Strength and Cognitive Function in Older Adults: Korean Longitudinal Study of Aging (2006-2018)

Authors
 San Lee  ;  Jae Won Oh  ;  Nak-Hoon Son  ;  Woojin Chung 
Citation
 INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, Vol.19(3) : 1048, 2022-01 
Journal Title
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN
 1661-7827 
Issue Date
2022-01
MeSH
Aged ; Aging ; Cognition ; Cognitive Dysfunction* / diagnosis ; Female ; Hand Strength* ; Humans ; Longitudinal Studies ; Male ; Republic of Korea / epidemiology
Keywords
KLoSA ; South Korea ; aging ; cognitive decline ; handgrip strength ; physical strength
Abstract
Accumulating research indicates that handgrip strength is associated with cognitive function. Studies have also shown the difference in cognitive decline between males and females. We investigated the association between baseline handgrip strength and later cognitive function in older adults according to sex using the dataset from Korean Longitudinal Study of Aging (2006-2018). Overall, 9707 observations of 1750 participants (989 males and 761 females) over 65 years of age were sampled from the first wave, followed by six consecutive waves. The Korean version of the Mini-Mental State Examination and baseline handgrip strength scores were assessed. Sociodemographic and health-related variables were also included as covariates in the multivariable linear mixed models. Males in the lowest quartile of the baseline handgrip strength decreased in cognitive function (β = -0.54, standard error (SE) = 0.16, p < 0.001), compared to males in the highest quartile. For females, those in the second lowest quartile (β = -0.65, SE = 0.19, p < 0.001) and the lowest quartile (β = -0.53, SE = 0.19, p< 0.01) decreased in cognitive function. Handgrip strength may be positively associated with later cognitive function, but the association may be non-linear and differ between sexes. Sex-specific preventive assessment of handgrip strength may help identify older adults at risk for cognitive impairment.
Files in This Item:
T202200421.pdf Download
DOI
10.3390/ijerph19031048
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실) > 1. Journal Papers
4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
Yonsei Authors
Lee, San(이산) ORCID logo https://orcid.org/0000-0003-4834-8463
Chung, Woo Jin(정우진) ORCID logo https://orcid.org/0000-0003-2090-4851
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/188008
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