J Phys Act Health. 2020 Aug 31;17(10):1034-1041. doi: 10.1123/jpah.2019-0672.
The purpose was to determine the proportion of 9- to 11-year-old children meeting the 24-hour movement guidelines (24-HMG) in a low-income town from Chile.
Physical activity, sedentary behavior (recreational screen), and sleep times were measured with both questionnaire and accelerometer in 258 children from third to sixth grade. Meeting the 24-HMG was defined as having ≥60 minutes per day of moderate to vigorous physical activity, ≤2 hour day of screen time, and 9 to 11 hours of sleep per night. Compliance rates were calculated as self-reported 24-HMG, with all estimations based on questionnaires, and mixed 24-HMG, in which physical activity and sleep were determined with an accelerometer and sedentary behavior was determined with a questionnaire.
About 198 children (10.1 [0.8] y, range 9-11 y) provided valid data for estimating self-reported 24-HMG, and 141 for mixed 24-HMG. Only 3.2% and 0.7% met the 24-HMG when using the self-reported and mixed methods, respectively. When assessing individual recommendations, 13.1% and 3.7% of the sample were physically active based on the self-report and accelerometer, respectively. About a quarter met the sedentary behavior recommendations, while around 50% met the sleep recommendations with both self-reported and mixed methods.
An extremely low percentage of the participants met the 24-HMG. Multicomponent initiatives must be implemented to promote healthy movement behaviors in Chilean children.
本研究旨在确定智利一个低收入城镇 9-11 岁儿童符合 24 小时身体活动指南(24-HMG)的比例。
通过问卷和加速度计对 258 名三至六年级儿童的身体活动、久坐行为(娱乐性屏幕时间)和睡眠时间进行测量。符合 24-HMG 的定义为每天有≥60 分钟的中等到剧烈的身体活动、≤2 小时的屏幕时间和 9-11 小时的夜间睡眠时间。报告的 24-HMG 合规率是根据问卷计算的,所有估计值均基于问卷,混合 24-HMG 则是根据加速度计确定身体活动和睡眠,而根据问卷确定久坐行为。
大约 198 名儿童(10.1[0.8]岁,范围 9-11 岁)提供了有效数据用于估计自我报告的 24-HMG,141 名儿童提供了混合 24-HMG 的有效数据。仅分别有 3.2%和 0.7%的儿童符合自我报告和混合方法的 24-HMG 标准。当评估个体建议时,根据自我报告和加速度计,分别有 13.1%和 3.7%的样本具有身体活动能力。大约四分之一的儿童符合久坐行为建议,而大约 50%的儿童无论使用自我报告还是混合方法都符合睡眠建议。
参与者符合 24-HMG 的比例极低。必须实施多组分干预措施,以促进智利儿童的健康运动行为。