Aging and the Change in Fatigue and Sleep - A Longitudinal Study Across 8 Years in Three Age Groups.
Aging and the Change in Fatigue and Sleep - A Longitudinal Study Across 8 Years in Three Age Groups.
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DOI：
10.3389/fpsyg.2018.00234
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发表时间：
2018
影响因子：
3.8
通讯作者：
Westerlund H
中科院分区：
文献类型：
--
作者：
Åkerstedt T;Discacciati A;Miley-Åkerstedt A;Westerlund H
疲劳在人群中很普遍，通常与睡眠问题有关，而这两者都与年龄有关。然而，之前的研究都是横向的。本研究的目的是调查一个大群体（约8000人）8年衰老过程中睡眠和疲劳的轨迹。第二个目的是调查疲劳轨迹是否会在不同年龄组之间有所不同，以及疲劳的不同轨迹是否会反映在睡眠变量轨迹的相应差异中。混合模型分析的结果显示，8年间，所有年龄组的疲劳程度都有所下降，而睡眠问题增加，非恢复性睡眠减少，周末睡眠时间减少，工作日睡眠时间随年龄的不同而呈现不同的模式。此外，疲劳程度的降低越大，睡眠时间的增加就越大，睡眠问题的增加就越少，非恢复性睡眠的减少就越大。研究结果表明，衰老对疲劳和睡眠有积极影响，而且这些变化是相互关联的。
Fatigue is prevalent in the population and usually linked to sleep problems, and both are related to age. However, previous studies have been cross-sectional. The purpose of the present study was to investigate the trajectories of sleep and fatigue across 8 years of aging in a large group (N > 8.000) of individuals. A second purpose was to investigate whether fatigue trajectories would differ between age groups, and whether different trajectories of fatigue would be reflected in a corresponding difference in trajectories for sleep variables. Results from mixed model analyses showed that fatigue decreased across 8 years in all age groups, while sleep problems increased, non-restorative sleep decreased, weekend sleep duration decreased, and weekday sleep duration showed different patterns depending on age. Furthermore, the larger the decrease in fatigue, the larger was the increase in sleep duration across years, the lower was the increase of sleep problems, and the larger was the decrease of non-restorative sleep. The results suggest that aging has positive effects on fatigue and sleep and that these changes are linked.
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