儿童在整个学年体育活动量和强度的轨迹:准备,设置,移动项目
Stuart J Fairclough1,2, Lauren Clifford3, Jordan Banks4
1Sport, Physical Activity, Health and Wellbeing Research Group, Department of Sport and Physical Activity, Edge Hill University, Ormskirk, UK. Stuart.Fairclough@edgehill.ac.uk.
Journal of activity, sedentary and sleep behaviors
|November 29, 2025
概括
孩子 孩子 孩子 孩子
科学领域:
- 儿童体育活动监测监测
- 基于加速度计的指标
- 纵向研究的设计研究设计.
背景情况:
- 平均加速度 (AvAcc) 和强度梯度 (IG) 量化体力活动的体积和强度分布.
- 对于孩子的AvAcc和IG在整个学年在平日和周末如何变化的理解有限.
- 这项研究解决了关于儿童体育活动轨迹的知识差距.
研究的目的:
- 描述儿童周日和周末 AvAcc 和 IG. 的学年轨迹.
- 检查这些体育活动指标在不同活动群体中随着时间的推移如何变化.
主要方法:
- 249名儿童 (8-9岁) 在整个学年三个时间点穿着加速度计7天.
- 计算了周日和周末的AvAcc和IG.
- 使用K-means集群和线性混合模型来分析整个样本和确定集群的轨迹.
主要成果:
- 与秋季和冬季/春季相比,夏季的周日AvAcc显著增加;IG保持稳定.
- 周末AvAcc和IG在整个学年表现出稳定的轨迹.
- 三个不同的活动集群出现了,周日的AvAcc和IG轨迹模式各不相同,特别是在不太活跃的群体中.
结论:
- 儿童的体育活动量,但不是强度,在学年期间在平日增加;周末活动保持稳定.
- 在工作日和周末集群之间观察到不同的活动概况和轨迹.
- 联合AvAcc和IG提供了互补的见解,为儿童的体育活动干预计划提供了信息.
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