Effects of Physical Fitness Exercise Prescription on Body Composition in Junior High School Students

After 12-week study of prescribed physical fitness exercise, the body composition of 240 junior high school students were measured by body composition analyzer (Korea Jawon ZEUS9.9),to explored discuss the forms and methods of exercise prescriptin extracurricular physical education teaching and its role in improving the body composition of junior high school students. The results showed that, the BMI (Body Mass Index), muscle mass (MM) and lean body mass in the velocity strength of the comprehensive group was significantly higher than in the control group. The total body water in the velocity strength in the comprehensive group was also significantly higher than the control group. The basal metabolic rate in the comprehensive group was higher significantly than in the control group. Proper exercise was important for a healthy body composition and to improve students' physical constitution.