Objective To study the effects of brisk walking on body mass index（BMI） and physiological and biochemical indexes of obese university students.Method 40 obese university students at a certain university were chosen and the individual target heart rate was determined with bicycle load test.The individualized exercise prescription was produced in combination with the subjective perception during the determination and the individual guidance was conducted.A 12W exercise intervention was conducted for these students and the results of general examination and biochemical examination before and after the exercise were comparatively analyzed.Results Weight

BMI

waistline

hipline

body fat percent

blood fat

blood glucose etc.of obese university students had dropped obviously after the exercise intervention and the differences were statistically significant（p<0.05）.Namely

BMI before exercise intervention was（29.86±2.34）

after intervention

（27.43±1.59）

total cholesterol was 5.61±1.23（before） and 4.67±0.94（after）

triglyceride was 2.33±0.25（before） and 1.97±0.65（after）

low density lipoprotein was3.23±0.52（before） and 2.88±0.52（after）.Conclusion Brisk walking which can reduce the weight and lower the blood lipid level of obese university students may be a preferable exercise program to improve physical function of university students.