近年来,肥胖在我国城市学生群体中蔓延,我国许多城市的学生营养问题防治重点已从营养不良向肥胖、超重转移。肥胖与一系列的疾病或健康有关,尤其是少儿肥胖,所导致的负面影响有很多。因此,本文对运动与营养对身体成分的影响进行了分析,并针对初中学生的特点提出了防治肥胖的对策。 In recent years, obesity has spread among urban student groups in our country. The prevention and control of nutrition problems among students in many cities in China has shifted from malnutrition to obesity and overweight. Obesity is related to a range of diseases or health, especially children, and there are many negative effects. Therefore, this article analyzes the effects of exercise and nutrition on body composition, and proposes countermeasures against obesity for the characteristics of junior high school students.