OBJECTIVE To increase our understanding of patterns of change in physical activity and sleep complaints and to test whether intra-individual changes in physical activity are correlated with intra-individual changes in sleep complaints across four measurement time-points over six years, adopting both a between-person and within-person perspective. METHODS Data from a longitudinal cohort study were used in this research. At baseline, 3187 participants took part in the study (86% women, Mage = 46.9 years). The response rate was 84% (n = 3136) after two years, 60% (n = 2232) after four years, and 40% (n = 1498) after six years. Physical activity was assessed with the [51] widely used 4-level physical activity scale (SGPALS), and sleep complaints with three items from the Karolinska Sleep Questionnaire (KSQ). Patterns and correlations of change between physical activity and sleep complaints were examined with latent growth curve modeling. RESULTS Changes in physical activity were associated with changes in sleep complaints across the six years. More specifically, significant associations occurred between baseline levels, correlated (between-person) change, and coupled (within-person change). These associations indicate that higher physical activity levels are not only cross-sectionally linked with fewer sleep complaints, but that increases in physical activity over time (either in comparison to others or to oneself) are paralleled by decreases in sleep complaints. CONCLUSIONS Given that changes in physical activity and sleep are correlated, our findings indicate that it is worthwhile to initiate more physically active lifestyles in physically inactive individuals; and to ensure that those who are already physically active maintain their physical activity levels over longer periods.

中文翻译：

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身体活动的变化与睡眠状况变化的关联：与瑞典卫生保健工作者进行的为期六年的纵向研究得出的结果。

目的为了在6年的四个测量时间点上提高我们对体育活动和睡眠障碍变化模式的了解并测试个体内部体育锻炼变化是否与睡眠投诉个体内部变化相关，在两者之间采用人和人内视角。方法本研究采用了纵向队列研究的数据。基线时，有3187名参与者参加了该研究（86％的女性，法师= 46.9岁）。两年后的响应率为84％（n = 3136），四年后的响应率为60％（n = 2232），六年后的响应率为40％（n = 1498）。使用[51]广泛使用的4级体育活动量表（SGPALS）评估体育活动，并使用Karolinska睡眠问卷（KSQ）的三项评估睡眠不适。用潜在的生长曲线模型检查了体育活动与睡眠障碍之间变化的模式和相关性。结果在过去的六年中，体育锻炼的变化与睡眠投诉的变化相关。更具体地说，基线水平，相关（人与人之间）变化和耦合（人与人之间变化）之间存在显着的关联。这些关联表明，较高的体育活动水平不仅与较少的睡眠障碍有关，而且随着时间的推移（与他人或与自己相比），体育活动的增加与睡眠障碍的减少平行。结论鉴于体育锻炼和睡眠的变化是相关的，我们的研究结果表明，在缺乏身体活动的个体中开始更多的积极身体活动的生活方式是值得的；并确保那些已经在进行体育锻炼的人在较长时期内保持自己的体育锻炼水平。