The Relationship Between Grip Strength and Cognitive Impairment: Evidence From NHANES 2011–2014

IF 2.6 3区心理学 Q2 BEHAVIORAL SCIENCES

Brain and Behavior Pub Date : 2025-03-18 DOI:10.1002/brb3.70381

Wenyi Nie, Jingqing Hu

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Abstract

Background

Prior research has consistently shown an association between muscle strength and various metabolic diseases. However, the relationship between muscle strength and cognitive impairment remains elusive.

Methods

Using data from the 2011–2014 National Health and Nutrition Examination Survey (NHANES), we investigated the association between muscle strength and cognitive impairment. We used multivariate logistic regression, restricted cubic spline regression (RCS), and threshold effects to investigate the impact of muscle strength on cognitive function. In addition, we analyzed the correlation between muscle strength and cognitive impairment in subgroups of age, gender, race, education, smoking status, drinking status, hypertension, diabetes, and heart disease.

Results

2124 participants were ultimately included for further analysis. Multivariate logistic regression, trend testing, and RCS analysis showed a non-linear negative correlation between muscle strength and cognitive impairment. Threshold effect analysis suggests that when muscle strength reaches a certain value, this relationship undergoes significant changes. In the three cognitive function scoring tests, interaction was only observed in the racial subgroup.

Conclusion

This study suggests a negative correlation between muscle strength and cognitive function, which may have a threshold effect. Further longitudinal studies are needed to elucidate its potential mechanisms.

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来源期刊

Brain and Behavior BEHAVIORAL SCIENCES-NEUROSCIENCES

CiteScore

5.30

自引率

0.00%

发文量

352

审稿时长

14 weeks

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