Hohensee Caroline Wollner, Nies Mary A
Pfeiffer University, USA
Idaho State University, USA.
J Child Health Care. 2014 Jun;18(2):192-201. doi: 10.1177/1367493513485650. Epub 2013 May 31.
The international physical inactivity epidemic among children has contributed to child obesity. Schools can be an effective source of physical activity opportunity. A cross-sectional sample of 1306 American children was drawn from the Panel Study of Income Dynamics - Child Development Supplement, 2007. The aim of this study was to determine the role of in-school physical activity on body mass index (BMI) percentile among middle and high school-aged children. Multinomial logistic regression was used to assess the associations between the independent variable, physical activity, and the dependent variable, BMI percentile. After adjusting for covariates, children who had no physical activity during physical education (PE) were much more likely to be obese than normal weight in comparison with those who met the US national requirements (odds ratio = 1.58, confidence interval = 1.14, 2.20). This study suggests that meeting US national guidelines for PE-related physical activity may be effective in preventing obesity.
儿童中缺乏身体活动这一国际流行趋势导致了儿童肥胖问题。学校可以成为提供身体活动机会的有效场所。从2007年收入动态面板研究——儿童发展补充调查中抽取了1306名美国儿童作为横断面样本。本研究的目的是确定在校体育活动对初高中年龄段儿童体重指数（BMI）百分位数的作用。采用多项逻辑回归来评估自变量（身体活动）与因变量（BMI百分位数）之间的关联。在对协变量进行调整后，与达到美国国家要求的儿童相比，那些在体育课（PE）期间没有进行体育活动的儿童肥胖的可能性比体重正常的儿童高得多（优势比 = 1.58，置信区间 = 1.14，2.20）。这项研究表明，达到美国国家体育活动相关指南的要求可能对预防肥胖有效。
