Department of Mathematics and Statistics, Concordia University, 1455 de Maisonneuve Blvd W, Montreal, Quebec, H3G 1M8, Canada; PERFORM Centre, Concordia University, 7200 Sherbrooke St W, Montreal, Quebec, H4B 1R6, Canada.
Centre de recherche du centre hospitalier de l'Université de Montréal, 900 Rue Saint-Denis, Montréal, Quebec, H2X 0A9, Canada; INDI Department, Concordia University, 7141 Sherbrooke St W, Montreal, Quebec, H4B 1R6, Canada.
Sleep Health. 2017 Feb;3(1):56-61. doi: 10.1016/j.sleh.2016.11.001. Epub 2016 Dec 9.
Intensity and duration of physical activity (PA) and sedentary behavior are individually associated with sleep, but their independent associations are poorly characterized. The objectives of this study were to determine if PA and/or sedentary behavior are/is associated with sleep quality and/or quantity in a young adult sample.
Cross-sectional.
Montreal, Canada.
Participants (n=658) from the Nicotine Dependence in Teens Study.
PA measures included total minutes of light, moderate, and vigorous PA in the past week; sedentary measures included number of hours per day watching television (TV) and using the computer for leisure activities in the past week. Sleep measures included (1) the Pittsburgh Sleep Quality Index, which assesses sleep quality in the past month, and (2) number of hours of sleep per night in the past month. Data were analyzed using multiple logistic regression adjusting for age, sex, and mother's education.
In multivariable analyses, each additional hour of TV and computer use per day was associated with a 17% and 13% increase, respectively, in the odds of reporting poor sleep quality. After additionally adjusting for PA, the association between TV use and poor sleep quality remained significant (odds ratio: 1.15, 95% confidence interval: 1.01-1.28). Sedentary behavior was not associated with sleep quantity. PA intensity and duration were not associated with sleep quality or quantity.
More time spent doing sedentary activities was associated with poorer sleep quality, but PA was not associated. Clinicians treating young adults with sleep problems should inquire about sedentary behavior.
身体活动（PA）和久坐行为的强度和时间与睡眠单独相关，但它们的独立关联尚未得到充分描述。本研究的目的是确定在年轻成年人样本中，PA 和/或久坐行为是否与睡眠质量和/或睡眠量相关。
横断面研究。
加拿大蒙特利尔。
来自青少年尼古丁依赖研究的参与者（n=658）。
PA 测量包括过去一周内轻、中、高强度 PA 的总分钟数；久坐行为测量包括过去一周内每天看电视（TV）和使用计算机进行休闲活动的时间。睡眠测量包括（1）匹兹堡睡眠质量指数，用于评估过去一个月的睡眠质量，以及（2）过去一个月每晚的睡眠时间。使用多元逻辑回归分析调整年龄、性别和母亲教育进行数据分析。
在多变量分析中，每天多观看 1 小时电视和使用计算机与报告睡眠质量差的几率分别增加 17%和 13%。在额外调整 PA 后，看电视与睡眠质量差之间的关联仍然显著（比值比：1.15，95%置信区间：1.01-1.28）。久坐行为与睡眠量无关。PA 强度和时间与睡眠质量或睡眠量无关。
久坐行为时间与睡眠质量差有关，但 PA 与睡眠质量或睡眠量无关。治疗睡眠问题的年轻成年人的临床医生应询问久坐行为。
