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KMID : 0379220190390030549
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Journal of Korea Gerontological Society
2019 Volume.39 No. 3 p.549 ~ p.567
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The Effects of Relative Handgrip Strength on Cognitive Function: The Moderating Roles of Paid Employment Status and Social Activities
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Choi Myung-Jin
Kim Gi-Yeon
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Abstract
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The present study examined whether the relation between relative handgrip strength and cognitive function varied by paid employment status and participation of social activities among Korean older adults. A total of 3,376 Korean adults aged 65 or older were drawn from the 2016 Korean Longitudinal Study of Ageing (KLoSA). Weighted hierarchical regression analyses were conducted to examine moderating effects of paid employment status and social activities on the relation between relative handgrip strength and cognitive function. After adjusting for covariates, results show that relative handgrip strength has a positive association with cognitive function. Both paid employment status and social activities have positive associations with cognitive function and moderate the relationship between relative handgrip strength and cognitive function. These significant moderating effects show that participating in paid employment and social activities buffer against the effect of lower handgrip strength on cognitive function. Findings from the present study highlight the significant role of active aging in older adults’cognitive function. Implications are discussed in a cultural context.
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KEYWORD
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handgrip, cognitive function, employment, social activities, active aging, successful aging, Korean older adults
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