Muscle Strength Moderates the Relationship between Nutritional Health Risk and Depression in Korean Older Adultsopen access
- Authors
- Kim, J[Kim, Jeonghyeon]; Kang, S[Kang, Seamon]; Hong, H[Hong, Haeryun]; Kang, H[Kang, Hyunsik]; Kim, JH[Kim, Ju-Hyoung]; Woo, SK[Woo, Sang-Koo]
- Issue Date
- Feb-2022
- Publisher
- MDPI
- Keywords
- depression; nutrition; physical fitness; lifestyle risk factors; older adults; Koreans
- Citation
- NUTRIENTS, v.14, no.3
- Indexed
- SCIE
SCOPUS
- Journal Title
- NUTRIENTS
- Volume
- 14
- Number
- 3
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/95531
- DOI
- 10.3390/nu14030665
- ISSN
- 2072-6643
- Abstract
- Background: Little is known about the relationships between muscle strength and nutritional health risk with late-in-life depression. This study aimed to investigate the moderating effect of lower-extremity muscle strength on the relationship between nutritional health risk and depression in Korean older adults. Methods: Data obtained from 5949 women and 3971 men aged >= 65 years in the 2020 Korea Longitudinal Study on Aging were used in this study. Exposures included lower-extremity muscle strength and nutritional health risk. Lower-extremity muscle strength was measured with a modified sit-to-stand test. The nutritional health risk was assessed using a screening tool. Depression was defined as a score >= 8 points on the Geriatric Depression Scale (GDS). Results: Logistic regression analyses showed that depression was positively associated with nutritional health risk (p < 0.001) and inversely associated with lower-extremity muscle strength (p < 0.001). A moderation analysis with Andrew Hayes' PROCESS macro showed a significant moderating effect of lower-extremity muscle strength (beta = -0.119; 95% confidence interval, -0.172 to -0.066; p < 0.001) on the relationship between nutritional health risk and depression; the weaker was the muscle strength, the steeper was the slope of the GDS score for nutritional health risk. Conclusions: The current findings suggest the need for an intervention targeting both high nutritional risk and weak muscle strength as a therapeutic strategy against depression in Korean older adults.
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Collections - Sport Science > Department of Sport Science > 1. Journal Articles
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