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Associations between physical and sedentary activity regularity and sleep in preschoolers and kindergartners

机译：身体和久坐活动规律性与学龄前儿童的睡眠之间的关联

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Short sleep duration in childhood has been associated with increased risk for overweight and obesity. Research suggests that physical activity might mediate this association. However, studies examining associations between physical activity and sleep in young children have reported equivocal findings. A possible explanation for these inconsistencies is that past studies have looked at total physical activity rather than examining physical activity regularity. We aimed to explore the associations between physical and sedentary activity regularity (ie, consistent vs intermittent behavior) and sleep in preschoolers and kindergartners. One hundred and thirty-one children (ages 4-6) wore waist-worn accelerometers for 3 days and 3 nights. Associations between physical and sedentary activity regularity and attaining adequate sleep duration were assessed using logistic regression. There was no association between the number of days that children engaged in >60 minutes of total physical activity and sufficient sleep. Furthermore, there was no association between the number of days that children engaged in >20 minutes of vigorous activity and sufficient sleep. Children who engaged in minimal sedentary activity had greater odds of obtaining sufficient sleep as compared with children who engaged in more sedentary activity.
机译：童年的睡眠时间短与超重和肥胖的风险增加有关。研究表明，体育活动可能会介导这种关联。然而，研究幼儿体育活动与睡眠之间的关联的研究报告了模棱两可的发现。这些不一致的可能解释是，过去的研究研究了全部体育锻炼，而不是检查身体活动的规律性。我们的目的是探索身体和久坐活动规律性（即，一致与间歇性行为）与学龄前儿童和幼儿园的睡眠之间的关联。一百三十一个儿童（4-6岁）穿着腰部加速度计3天和3晚。使用逻辑回归评估了身体和久坐活动规律性和达到足够睡眠持续时间之间的关联。在儿童参加> 60分钟的全部体育锻炼和足够睡眠的天数之间没有关联。此外，儿童参加> 20分钟的剧烈活动和足够的睡眠的天数之间没有关联。与从事更久坐活动的儿童相比，从事最少久坐活动的儿童获得了足够的睡眠几率。

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