Evidence map›Paper›PMID 34852792›Full record

ArticleBMC geriatrics2021

Association between change in handgrip strength and cognitive function in Korean adults: a longitudinal panel study.

Hyunkyu Kim, Seung Hoon Kim, Wonjeong Jeong, Sung-In Jang, Eun-Cheol Park, Youseok Kim

Abstract read
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

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  4. Physical fitness and incident mild cognitive impairment: a systematic review.European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity · 2025
    Review
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  6. Interplay of Physical Activity, Muscle Strength, and Depression in Cognitive Impairment among Korean Older Adults: A Cross-sectional Study.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Hyunkyu KimDepartment of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Seung Hoon KimDepartment of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Wonjeong JeongInstitute of Health Services Research, Yonsei University, Seoul, Republic of Korea.
Sung-In JangDepartment of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Eun-Cheol ParkDepartment of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Youseok KimInstitute of Health Services Research, Yonsei University, Seoul, Republic of Korea. kysmd@yuhs.ac.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMuscular function, such as handgrip strength, has been suggested as an associated factor for cognitive impairment. This study investigated the association between temporal change in handgrip strength and cognitive function using longitudinal, nationwide data from Korean older adults.

methodsOur study used data from the Korean Longitudinal Study of Aging (KLoSA). The analysis covered 6696 participants who had taken the handgrip strength test and Mini-Mental State Examination (MMSE) from 2006 to 2018. We adopted general estimating equations to assess the temporal effect of handgrip strength change on cognitive function.

resultsAfter adjusting for covariates, we observed an association between handgrip strength and low MMSE scores (β = - 0.3142 in men, β = - 0.2685 in women). Handgrip strength as a continuous variable was positively correlated with MMSE scores after adjustment (β = 0.0293 in men, β = 0.0347 in women). The group with decreased handgrip strength over time also showed greater odds for mild cognitive impairment (OR = 1.23, 95%CI = 1.05-1.27 in men, OR = 1.15, 95%CI = 1.05-1.27 in women) and dementia (OR = 1.393, 95%CI = 1.18-1.65 in men, OR = 1.19, 95%CI = 1.08-1.32 in women).

conclusionsThis study identified the relationship between handgrip strength change and cognitive function among South Korean adults. According to our large, longitudinal sample, decreasing handgrip strength was associated with decline in cognitive function.

Indexed as

Cognitive DysfunctionHand StrengthAgedCognitionFemaleHumansLongitudinal StudiesMaleRepublic of KoreaAgingCognitive functionCognitive impairmentHandgrip strengthKorean longitudinal study of aging

Identifiers

PMID34852792
PMCPMC8638365

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LicenceCC BY
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.