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首页> 外文期刊>Journal of physical activity & health >Objectively Measured Sedentary Levels and Bouts by Day Type in Australian Young Children
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Objectively Measured Sedentary Levels and Bouts by Day Type in Australian Young Children

机译：客观地测量了澳大利亚幼儿日类型的久坐等级和回合

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Background: This study aimed to understand whether a higher number of sedentary bouts (SED bouts) and higher levels of sedentary time (SED time) occur according to different day types (childcare days, nonchildcare weekdays, and weekends) in Australian toddlers (1-2.99 y) and preschoolers (3-5.99 y). Methods: The SED time and bouts were assessed using ActiGraph GT3X+ accelerometers. The sample was composed of 264 toddlers and 343 preschoolers. The SED bouts and time differences were calculated using linear mixed models. Results: The toddlers' percentage of SED time was higher on nonchildcare days compared with childcare days (mean difference [MD] = 2.3; 95% confidence interval, 0.7 to 3.9). The toddlers had a higher number of 1- to 4-minute SED bouts on nonchildcare days compared with childcare days. The preschoolers presented higher percentages of SED time during nonchildcare days (MD = 3.1; 95% confidence interval, 1.6 to 4.5) and weekends (MD = 1.9; 95% confidence interval, 0.4 to 3.4) compared with childcare days. The preschoolers presented a higher number of SED bouts (1-4, 5-9, 10-19, and 20-30 min) during nonchildcare days and weekends compared with childcare days. No SED times or bout differences were found between nonchildcare days and weekends, neither SED bouts >30 minutes on toddlers nor on preschoolers. Conclusion: The SED time and bouts seem to be lower during childcare periods, which means that interventions to reduce sedentary time should consider targeting nonchildcare days and weekends.
机译：背景：本研究旨在了解澳大利亚幼儿（1-2.99岁）和学龄前儿童（3-5.99岁）在不同的日子类型（儿童保育日、非儿童保育工作日和周末）中是否会出现更多的久坐运动（SED运动）和更多的久坐时间（SED时间）。方法：使用活动记录仪GT3X+加速计评估SED时间和发作。样本由264名幼儿和343名学龄前儿童组成。使用线性混合模型计算SED和时间差。结果：幼儿在非儿童保育日的SED时间百分比高于儿童保育日（平均差异[MD]=2.3；95%置信区间，0.7至3.9）。与儿童保育日相比，幼儿在非儿童保育日有更多1到4分钟的SED发作。与儿童保育日相比，学龄前儿童在非儿童保育日（MD=3.1；95%置信区间，1.6至4.5）和周末（MD=1.9；95%置信区间，0.4至3.4）的SED时间百分比较高。与儿童保育日相比，学龄前儿童在非儿童保育日和周末出现更多的SED发作（1-4、5-9、10-19和20-30分钟）。在非儿童护理日和周末之间未发现SED时间或回合差异，幼儿和学龄前儿童的SED回合均未超过30分钟。结论：SED时间和回合似乎在育儿期间较低，这意味着减少久坐时间的干预应考虑以非育儿日和周末为目标。

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