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中小学学生学习负担重,体育锻炼不足;一些家长以为注意了孩子的营养就可以保证健康,尤其是独生子女,摄食量较多,甚至经常服用药剂补品,形成热量过剩。应当注意的是,肥胖青少年儿童的发病率明显高于同年龄体脂含量正常者。引起青少年儿童肥胖的原因有:缺乏合理的营养搭配,好吃甜食、零食,体力活动少,机体代谢紊乱以及遗传等因素。为了解1992年以来北京地区中小学生身体成份的现状,并与经济发达的香港地区同龄学生作对比,特与香港浸会学院进行了合作研究。通过抽样调查测试,比较北京与香港两地中小学生身体成份方面的差异情况,并提出建议,也为今后进一步的追踪研究打下基础。
Primary and secondary school students have a heavy learning burden and lack of physical exercise. Some parents think that paying attention to the nutrition of their children can ensure their health. Especially the only children, who consume more food, often take prescription supplements to form excess calories. It should be noted that the incidence of obese adolescent children was significantly higher than those with normal body fat content. The causes of obesity in children and adolescents are: lack of reasonable nutrition, delicious desserts, snacks, less physical activity, metabolic disorders and genetic factors. In order to understand the status quo of body composition of primary and secondary school students in Beijing since 1992 and to compare with the same-sex students in economically developed Hong Kong, we conducted a cooperative study with the Hong Kong Baptist College. Passing the sample test to compare the differences in the composition of primary and secondary school students in Beijing and Hong Kong, and making suggestions, it will lay the foundation for further follow-up studies in the future.