从9岁到15岁的中等到强烈的体力活动
Philip R Nader1, Robert H Bradley, Renate M Houts
1Department of Pediatrics, University of California San Diego, 9500 Gilman Dr, La Jolla, CA 92093-0927, USA. pnader@ucsd.edu
JAMA
|July 18, 2008
概括
儿童身体活动从9岁到15岁显著下降. 到15岁时,年轻人每天从事不到一小时的中度至强度体力活动 (MVPA),这突出了严重的公共卫生问题.
科学领域:
- 儿科 儿科 儿科
- 公共卫生 公共卫生
- 运动科学 运动科学
背景情况:
- 儿童肥胖是一个日益关注的问题,与身体活动水平下降密切相关.
- 目前的建议建议年轻人每天至少进行60分钟的中度至强度体力活动 (MVPA).
- 关于儿童和青少年最近体育活动模式的纵向数据有限.
研究的目的:
- 分析年轻人中度至强度体力活动 (MVPA) 的模式和促成因素.
- 在一个具有代表性的出生队列中,追踪从9岁到15岁的MVPA趋势.
主要方法:
- 从NICHD早期儿童护理和青少年发展出生队列研究中对1032名参与者的纵向描述性分析.
- 加速度计确定的MVPA在9,11,12和15岁时进行测量.
- 数据包括人口统计信息和4-7天的日常活动监测.
主要成果:
- 在9岁时,儿童平均每天服用MVPA大约3小时.
- 观察到显著的下降:周日每年37分钟,周末每年39分钟.
- 到15岁时,周日的MVPA降至50分钟,周末的MVPA降至36分钟.
- 男孩的MVPA比女孩高,但两性下降的速度是相似的.
- 女孩在13.2岁 (工作日) 和12.7岁 (周末) 左右下降到60分钟的MVPA,而男孩则在稍后 (分别为14.9岁和13.6岁) 达到这一门.
结论:
- 青少年的体力活动水平在9岁至15岁之间显著下降.
- 研究队列中的青少年在15岁时不符合推的每日MVPA指南.
- 这些发现强调了需要采取干预措施,以促进儿童和青少年的持续体育活动.
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