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首页> 外文期刊>Journal of physical activity & health >Physical Activity, Screen Time, and Sleep Trajectories From Childhood to Adolescence: The Influence of Sex and Body Weight Status
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Physical Activity, Screen Time, and Sleep Trajectories From Childhood to Adolescence: The Influence of Sex and Body Weight Status

机译：从童年到青春期的身体活动，屏幕时间和睡眠轨迹：性别和体重状况的影响

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Background: Behavioral trajectories from childhood to adolescence may differ and are poorly understood. The authors estimated the trajectories of moderate to vigorous physical activity (MVPA), screen time, and sleep duration during this period, by sex and initial weight status. Methods: Data from Quebec Adiposity and Lifestyle Investigation in Youth, an ongoing cohort study in Canada on the natural history of obesity, were used. Participants predisposed to obesity attended baseline (8-10 y old, n = 630) and follow-up visits 2 years (n = 564) and 7 years (n = 359) after baseline. Participants with completed self-reported and accelerometer-based data were included in the analyses (n = 191, 353, and 240 for MVPA, screen time, and sleep, respectively). The authors performed group-based trajectory analyses and multinomial logistic regression models. Results: Two MVPA, 3 screen time, and 2 sleep trajectories were identified. Girls were more likely than boys to belong to trajectory with lower MVPA means (odds ratio [OR] = 6.45; 95% confidence interval [CI], 3.08 to 13.49), yet less likely to belong to the trajectory with higher screen time (OR = 0.47; 95% CI, 0.23 to 0.97) and lower sleep duration (OR = 0.46; 95% CI, 0.27 to 0.78). Overweight or obesity at baseline was associated with a greater likelihood of belonging to the trajectory with lower MVPA (OR = 10.99; 95% CI, 1.31 to 91.14) and higher screen time (OR = 2.01; 95% CI, 1.04 to 4.06), respectively. Conclusions: It appears to be gender- and weightbased determinants of behavioral trajectories in this sample. These results may provide guidance for interventions in similar populations.
机译：背景：从童年到青春期的行为轨迹可能有所不同，人们对其了解甚少。作者根据性别和初始体重状况，估计了这段时间内中度至剧烈体力活动（MVPA）的轨迹、屏幕时间和睡眠时间。方法：数据来自魁北克青少年肥胖和生活方式调查，这是加拿大正在进行的关于肥胖自然史的队列研究。有肥胖倾向的参与者参加了基线检查（8-10岁，n=630）和基线检查后2年（n=564）和7年（n=359）的随访。有完整的自我报告和基于加速计的数据的参与者被纳入分析（MVPA、屏幕时间和睡眠分别为191、353和240）。作者进行了基于组的轨迹分析和多项式逻辑回归模型。结果：确定了两条MVPA、3条筛查时间和2条睡眠轨迹。女孩比男孩更可能属于MVPA均值较低的轨迹（优势比[OR]=6.45；95%置信区间[CI]，3.08至13.49），但不太可能属于屏幕时间较长（OR=0.47；95%置信区间，0.23至0.97）和睡眠时间较短（OR=0.46；95%置信区间，0.27至0.78）的轨迹。基线检查时超重或肥胖与更大可能属于MVPA较低（or=10.99；95%CI，1.31至91.14）和筛查时间较高（or=2.01；95%CI，1.04至4.06）的轨迹相关。结论：在这个样本中，这似乎是基于性别和体重的行为轨迹决定因素。这些结果可能为类似人群的干预提供指导。

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