The Research of the Relationship Between the body Mass Index and the Physical Health Variables of the College Students

To investigate the relationship between the body mass index and the physical health variables of the college students from Hebei,Results:1) BMI of most students were distributed in normal range,but there were still some students who were overweight,obesity and lowweight.BMI in boys was much higher than that in girls,and the overweight and obesity in boys were much more than in girls as well.2) In girls the vital capacity index of the lowweight group was significantly higher than that of normal group,while the overweight and obesity group were significantly lower than that of normal group.3) As for boys vital capacity index and grip index of the lowweight group was significantly higher than that of normal group,while the overweight and obesity group were significantly lower than that of normal group.Stair test index of the overweight and obesity group were significantly lower than that of normal group.Standing long jump of the overweight group were significantly lower than that of normal group.Conclusions: Overweight and obesity in boys were significantly higher than that in girls.group of BMI hold better hespiration function and better grip.Overweight and obesity have a bad respiration function,muscle.