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一个自然实验,以评估休息频率在亚利桑那州 (美国) 的小学儿童的体育活动

Allison Poulos¹, Kylie Wilson², Marissa Schulke²

¹College of Health Solutions, Arizona State University, ABC 222 425 North 5th Street, Phoenix, AZ, 85004, USA. allison.poulos@asu.edu.

BMC public health

|January 18, 2024

概括

学校有更频繁的休息时间促进儿童体育活动 (PA) 水平的提高. 坚持国家每日休息政策可以增加中度至强度的PA,并减少久坐时间.

科学领域:

公共卫生公共卫生
儿童发展儿童发展
教育政策教育政策

背景情况:

强制学校休息的州政策有所增加,但往往缺乏具体的频率指南.
身体活动 (PA) 政策的生态模型为这项研究提供了信息.
这项研究调查了休息期间的PA与亚利桑那州的政策 (ARS§15-118) 相关,该政策要求每天有2个以上的休息时间.

研究的目的:

为了比较休息期间的体力活动 (PA) 的总量和强度.
为了检查符合亚利桑那州休假政策 (每天2个以上的时间) 和不遵守的学校之间的PA差异.

主要方法:

亚利桑那州四所小学的三年级学生 (8-10岁) 参加了这次活动.
使用直接观察 (游戏和休观察系统) 和加速度计 (ActiGraph GT3X+) 来测量身体活动.
来自137个观测和134个加速度计装置的数据使用一般线性混合效应模型进行了分析.

主要成果:

每天有2个以上休息时间的学校的学生在中度至强度的体力活动 (MVPA) 中花费的时间显著增加 (5%通过观察,15%通过加速度计).
加速测量显示,符合规定的学校的学生在休息期间花费的时间减少了14%.
这相当于每天增加5.1-9.5分钟的MVPA,减少4.1分钟的静坐时间.

结论:

休息时间较频繁的学校 (2+) 与儿童的MVPA较高和较少的久坐时间有关.
遵守州PA政策可能会促进增加学生体育活动的环境.
全州的休息政策应该考虑指定休息频率,以最大限度地提高收益.

关键词:

加速度计的速度计.直接观察直接观察直接观察运动运动运动政策政策政策政策应急剂量是可以恢复的.

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