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步行是人们日常生活中最普遍的户外活动方式，步行不需特别的场地、器材，是人人皆可参加的体育锻炼方式。本研究对小学生的步行量进行了测定，并探讨了步行锻炼对预防肥胖的作用。1对象与方法1．1对象：随机整群抽取上海市徐汇区某小学3－4年级男女生各100人，平均年龄9．1岁
Walking is one of the most common outdoor activities in daily life. Walking requires no special venue or equipment. It is a physical exercise that everyone can participate in. This study measured the amount of walking of primary school students and explored the effect of walking exercise on the prevention of obesity. 1 Subjects and Methods 1.1 Subjects: A random cluster of 100 primary and secondary level boys and girls in Xuhui District, Shanghai, with an average age of 9.1 years