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首页> 外文期刊>International Journal of Environmental Research and Public Health >Association of Light Exposure on Physical Activity and Sedentary Time in Young People
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Association of Light Exposure on Physical Activity and Sedentary Time in Young People

机译：年轻人的光活动与久坐时间的关联

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To investigate whether light exposure was associated with objectively measured physical activity (PA) and sedentary behaviour in young people. Methods: Participants (n = 229, 46.7% female) were young people (mean 8.8 years [SD ± 2.2]) from the borough of Camden, UK. Daily sedentary time, moderate and vigorous PA (MVPA) and light exposure were measured using a tri-axial accelerometer with an ambient light sensor during the summer. Multiple linear regression models examined associations between average daily light exposure, sedentary time and time in MVPA. Models were repeated investigating weekdays and weekend days separately. Analyses were adjusted for pre-specified covariables, including age, sex, device wear time, ethnic group, school and body fat. Results: There were significant associations between average daily light exposure and time sedentary (β coefficient = ?11.2, 95% CI, ?19.0 to ?3.4) and in MVPA (β coefficient = 3.5, 95% CI, 1.2 to 5.9). Light exposure was significantly associated with weekend sedentary time (β coefficient = ?10.0, 95% CI, ?17.6, ?2.4), weekend MVPA (β coefficient = 3.7, 95% CI, 1.7, 5.7), weekday sedentary time (β coefficient = ?15.0, 95% CI, ?22.7 to ?7.2), but not weekday MVPA (β coefficient = 2.0, 95% CI, ?0.5 to 4.5). Conclusion: Average daily light exposure is positively associated with time in MVPA and negatively associated with sedentary time. Increasing daylight exposure may be a useful intervention strategy for promoting physical activity.
机译：调查光线照射是否与客观测量的年轻人的体力活动（PA）和久坐行为相关。方法：参与者（n = 229，女性46.7％）是来自英国卡姆登区的年轻人（平均8.8岁[SD±2.2]）。在夏季，使用带有环境光传感器的三轴加速度计测量每日久坐时间，适度和剧烈运动的PA（MVPA）以及光照。多个线性回归模型检查了平均每日光照，久坐时间和MVPA时间之间的关联。分别对工作日和周末分别进行了模型研究。对预先指定的协变量进行了分析调整，包括年龄，性别，设备佩戴时间，种族，学校和体脂。结果：平均每日光照与久坐时间之间显着相关（β系数= 11.2，95％CI，19.0至3.4）和MVPA（β系数= 3.5，95％CI，1.2至5.9）。光照与周末久坐时间（β系数=？10.0，95％CI，？17.6，？2.4），周末MVPA（β系数= 3.7，95％CI，1.7，5.7），工作日久坐时间（β系数）显着相关＝ ≥15.0，95％CI，≥22.7至≤7.2），但不是工作日MVPA（β系数＝ 2.0，95％CI，≤0.5至4.5）。结论：平均每日光照与MVPA中的时间呈正相关，与久坐时间呈负相关。增加日光照射可能是促进身体活动的有用干预策略。

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