医学
萧条(经济学)
逻辑回归
老人忧郁量表
体力活动
握力
抑郁症状
睡眠(系统调用)
最佳步行速度
物理医学与康复
物理疗法
老年学
认知
精神科
内科学
计算机科学
经济
宏观经济学
操作系统
作者
Seongryu Bae,Minwoo Jang,Gwon-Min Kim,Ja‐Gyeong Yang,Ngeemasara Thapa,Hye-Jin Park,Hye-Jin Park
摘要
The purpose of this study is to examine how physical function, physical activity, and sleep are related to depressive symptoms in older adults using a nonlinear model. The participants were 283 Korean older adults aged 65 and older who met the study inclusion criteria. Depressive symptoms were measured using the shortened version of the Geriatric Depression Scale in Korean (SGDS-K). Physical activity and sleep time were objectively quantified by continuously monitoring participants over 20 consecutive days using a triaxial accelerometer. Physical function was evaluated using five distinct measurements: grip strength, gait speed, the Timed Up and Go Test (TUG), the Six-Minute Walk Test (SMWT), and the Five Times Sit to Stand Test (FTSST). The SMWT, gait speed, and MVPA exhibited a nonlinear relationship with depressive symptoms. However, other physical functions showed linear relationships. Also, sleep time showed a U-shaped trend starting at approximately 390 min. After adjusting for age, sex, drinking, and smoking in the logistic regression model, SMWT, MVPA, and sleep time were significantly associated with depressive symptoms. The outcomes highlight the importance of considering multiple factors in understanding depression among the elderly, particularly the intricate interactions between these elements and biological rhythms.
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