整体和特定时间的身体活动与老年人的抑郁有关吗？
Is overall and timing-specific physical activity associated with depression in older adults?
机构信息
Graduate Institute of Sport, Leisure and Hospitality Management, National Taiwan Normal University, Taipei, Taiwan.
Department of Health Promotion and Health Education, National Taiwan Normal University, Taipei, Taiwan.
出版信息
Front Public Health. 2023 Sep 22;11:1241170. doi: 10.3389/fpubh.2023.1241170. eCollection 2023.
OBJECTIVE
Regarding the circadian rhythm regulating an individual's response to external stimulation, it remains unclear whether older adults engaged in physical activity at different times of day may be differently related to depression symptoms. Thus, this study aimed to investigate the association between overall and timing-specific physical activity and depressive symptoms in older Taiwanese adults.
METHODS
This cross-sectional study was conducted at a medical center in Taipei City, Taiwan, between September 2020 and December 2021. The participants were community-dwelling older adults aged ≥65 who could walk independently and were not at high risk of cognitive dysfunction. Physical activity was measured using a triaxial accelerometer (GT3X+, ActiGraph) and categorized into timing-specific periods (morning: 06:01-12:00; afternoon: 12:01-18:00; evening: 18:01-24:00) as well as overall physical activity, which included both light physical activity (LPA) and moderate-to-vigorous physical activity (MVPA). A 15-item Geriatric Depression Scale was utilized to assess and measure depressive symptoms. Multivariate linear regression models were estimated for data analysis.
RESULTS
A total of 180 older adults (55.0% female; 80.5 ± 7.1 years old; 18.3% at risk of depression) were included. On average, the participants spent 237.3 (± 85.7) minutes in LPA per day and 12.8 (± 17.0) minutes in MVPA per day. The results showed that overall MVPA engagement was associated with lower depressive-symptom scores [ = -1.357, 95% CI (-2.561, -0.153)] in older adults. However, no significant associations were observed between overall LPA, timing-specific MVPA and LPA, and depression in older adults.
CONCLUSION
To prevent depression in older adults, it is advisable to accumulate a higher amount of MVPA throughout the entire day rather than engage in LPA. Further studies employing a prospective design are necessary to validate and strengthen our findings.
目的
关于个体对外界刺激反应的生物钟调节，目前尚不清楚老年人在一天中的不同时间进行身体活动是否与抑郁症状有不同的关系。因此，本研究旨在探讨台湾老年人群体整体和特定时间的身体活动与抑郁症状之间的关系。
方法
这是一项在台湾台北市一家医疗中心进行的横断面研究，时间为 2020 年 9 月至 2021 年 12 月。参与者为能够独立行走且认知功能障碍风险较低的社区居住的 65 岁及以上老年人。身体活动使用三轴加速度计（GT3X+，ActiGraph）进行测量，并分为特定时间段（早晨：06:01-12:00；下午：12:01-18:00；晚上：18:01-24:00）和整体身体活动，包括轻度身体活动（LPA）和中等到剧烈身体活动（MVPA）。使用 15 项老年抑郁量表来评估和测量抑郁症状。进行数据分析的多变量线性回归模型。
结果
共纳入 180 名老年人（55.0%为女性；80.5±7.1 岁；18.3%有抑郁风险）。参与者平均每天进行 237.3（±85.7）分钟的 LPA 和 12.8（±17.0）分钟的 MVPA。结果显示，整体 MVPA 参与与老年人较低的抑郁症状评分相关（=−1.357，95%置信区间（−2.561，−0.153））。然而，老年人整体 LPA、特定时间 MVPA 和 LPA 与抑郁之间没有显著关联。
结论
为了预防老年人的抑郁，建议全天积累更多的 MVPA，而不是进行 LPA。需要进一步采用前瞻性设计的研究来验证和加强我们的发现。
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