Huang Wan-Chi, Chang Shao-Hsi, Hsueh Ming-Chun, Liao Yung
Department of Health Promotion and Health Education, National Taiwan Normal University, Taipei 106, Taiwan.
Department of Physical Education and Sport Sciences, National Taiwan Normal University, 106 Taipei, Taiwan.
Sleep Health. 2023 Feb;9(1):86-92. doi: 10.1016/j.sleh.2022.10.002. Epub 2022 Nov 28.
This study aimed to investigate the association of sleep regularity with time spent in sedentary behavior (SB) and physical activity (PA) in adults with full-time jobs.
This was a cross-sectional study. Adults aged 21-64 years with full-time jobs were recruited between August 2019 and December 2020 in Taiwan. The time spent in SB/PA was assessed using triaxial accelerometers (Actigraph wGT3x-BT), and PA was further classified into light-intensity physical activity (LPA) and moderate-to-vigorous intensity physical activity (MVPA). Each participant recorded their daily sleep patterns and work hours in a log, which was further used to measure sleep variability and social jet lag. Linear regression was applied to examine the associations of indicators of sleep regularity with SB time and PA time.
A total of 192 adults (men = 28.13%; mean age = 38.56 ± 8.89 years) were included in this study. After adjusting for potential covariates, greater social jet lag was related to more SB time (unstandardized coefficient [B] = 14.39, P = .005) and less LPA time (B = -0.02, P = .010). No evidence of an association between other indicators of sleep regularity with SB/PA time was found.
These results provide evidence for a relationship between sleep regularity and SB/PA time in working adults. Maintaining regular sleep, especially a small social jet lag, was suggested to promote physical activity and avoid a sedentary lifestyle. Future research is recommended to examine work-related influences on the associations and bidirectional relationship between sleep regularity and SB/PA.
本研究旨在调查全职工作的成年人的睡眠规律性与久坐行为（SB）时间和身体活动（PA）时间之间的关联。
这是一项横断面研究。2019年8月至2020年12月期间，在台湾招募了年龄在21 - 64岁的全职工作成年人。使用三轴加速度计（Actigraph wGT3x - BT）评估SB/PA时间，并且PA进一步分为轻度身体活动（LPA）和中度至剧烈强度身体活动（MVPA）。每位参与者在日志中记录他们的每日睡眠模式和工作时间，该日志进一步用于测量睡眠变异性和社会时差。应用线性回归来检验睡眠规律性指标与SB时间和PA时间之间的关联。
本研究共纳入192名成年人（男性 = 28.13%；平均年龄 = 38.56 ± 8.89岁）。在调整潜在协变量后，更大的社会时差与更多的SB时间相关（非标准化系数[B] = 14.39，P = 0.005）和更少的LPA时间相关（B = -0.02，P = 0.010）。未发现睡眠规律性的其他指标与SB/PA时间之间存在关联的证据。
这些结果为在职成年人的睡眠规律性与SB/PA时间之间的关系提供了证据。建议保持规律睡眠，尤其是较小的社会时差，以促进身体活动并避免久坐的生活方式。建议未来的研究检查与工作相关的因素对睡眠规律性与SB/PA之间关联及双向关系的影响。
