Alhainen Maria, Myllyntausta Saana, Pentti Jaana, Vahtera Jussi, Stenholm Sari
Department of Public Health, University of Turku, Turku University Hospital, Turku, Finland; Centre for Population Health Research, University of Turku, Turku University Hospital, Finland.
Department of Public Health, University of Turku, Turku University Hospital, Turku, Finland; Centre for Population Health Research, University of Turku, Turku University Hospital, Finland; Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
Sleep Med. 2020 Apr;68:35-41. doi: 10.1016/j.sleep.2019.09.009. Epub 2019 Oct 2.
Currently, little is known regarding whether changes in physical activity are associated with changes in sleep in general population. The aim of this study was to examine the association between changes in physical activity and changes in sleep duration and difficulties at retirement transition point.
Data from the prospective Finnish Retirement and Aging study of 2745 retired public sector employees was used. Participants answered questionnaires before and after the retirement with one year interval, in which they reported average weekly hours of physical activity, sleep duration and the frequency of sleep difficulties. The level of physical activity, classified as 'low', 'moderate' or 'high', before and after retirement was used to classify the participants to five physical activity groups. Changes in sleep duration (in minutes) and sleep difficulties (no, moderate, severe) were examined in these physical activity groups.
Before retirement, high physical activity was associated with longest sleep duration (7 h 8 min) and low physical activity was associated with severe sleep difficulties (OR 1.23, 95% CI 1.06-1.44) in comparison to high physical activity. During retirement transition, sleep duration increased in all physical activity change groups and sleep difficulties decreased significantly in 'stable', 'increase from moderate', 'decrease from moderate' and 'decrease from high' groups. Changes in sleep duration and sleep difficulties were not statistically significantly different between the physical activity change groups.
Sleep duration increases and sleep difficulties decrease after retirement. Changes in sleep during retirement transition seem to be independent of changes in physical activity during the same time period.
目前，关于体力活动的变化与普通人群睡眠变化之间的关系知之甚少。本研究的目的是探讨退休过渡阶段体力活动的变化与睡眠时间变化及睡眠困难之间的关联。
使用了来自芬兰一项针对2745名退休公共部门员工的前瞻性退休与衰老研究的数据。参与者在退休前后间隔一年回答问卷，报告平均每周的体力活动时长、睡眠时间和睡眠困难频率。根据退休前后的体力活动水平分为“低”“中”“高”，将参与者分为五个体力活动组。在这些体力活动组中研究睡眠时间（以分钟为单位）和睡眠困难（无、中度、重度）的变化。
退休前，与高体力活动相比，高体力活动与最长睡眠时间（7小时8分钟）相关，低体力活动与严重睡眠困难相关（比值比1.23，95%置信区间1.06 - 1.44）。在退休过渡期间，所有体力活动变化组的睡眠时间均增加，“稳定”“从中度增加”“从中度减少”和“从高度减少”组的睡眠困难显著减少。体力活动变化组之间的睡眠时间和睡眠困难变化在统计学上无显著差异。
退休后睡眠时间增加，睡眠困难减少。退休过渡期间的睡眠变化似乎独立于同一时期的体力活动变化。
