2034例大学生BMI与身体素质指标的相关性

The Correlation between BMI and Physical Fitness of 2034 College Students

目的:分析大学一年级体质量指数(BMI)与身体素质指标之间的关系。方法:以贵阳市某高职院校大一新生为监测样本,采取整群抽样的方法抽取学生2034人,分别测取男女学生的身高和BMI、引体向上(男)、仰卧起坐(女)、1000 m(男)跑、800 m(女)跑、50 m跑、立定跳远及坐位体前屈等身体素质指标,分析BMI与身体素质指标之间的相关性。结果:男女学生BMI均值(20.37±2.56)kg/m 2,86.18%的大学生处于正常范围,且大学男生BMI状况整体低于大学女生;不同BMI汉族男学生在50 m跑、立定跳远、引体向上、1000 m跑、坐位体前屈5个项目上比较,差异均有统计学意义(P<0.01);不同BMI大一汉族女学生在仰卧起坐、800 m跑、坐位体前屈3个项目上比较,差异有统计学意义(P<0.05);两两比较显示,低BMI组和正常BMI组各项身体素质指标优于超重BMI组和肥胖BMI组;男学生50 m跑、1000 m跑与BMI之间均存在正相关,女学生800 m跑与BMI之间均存在正相关;男学生立定跳远、引体向上与BMI之间均存在负相关,女学生立定跳远、仰卧起坐与BMI之间均存在负相关。结论:BMI与大学生各项身体素质指标具有相关性,且低BMI组及正常BMI组学生的身体素质指标优于超重BMI组、肥胖BMI组。

Objective:To analyze the correlation between the body mass index(BMI)and physical fitness index of college freshmen in Guiyang city Guizhou China.Methods:2034 freshmen of a vocational college in Guiyang were selected as monitored samples by the method of cluster sampling.The height and weight of both male and female students and their physical quality indexes such as pull-ups(male),sit ups(female),1000 m running(male),800 m running(female),50 m running,standing long jump and sit-and-reach were measured,and the correlation between BMI and physical fitness was analyzed.Results:The average BMI of male and female students was 20.37~2.56 kg/m 2.There was 86.18%of the students in the normal range,and the BMI of male students was lower than that of female students There was significant difference in the comparison among the male Han students with different BMI in the 5 events:50 m running,standing long jump,pull-ups,1000 m running and sit-and-reach(P<0.01).And there was significant difference in the comparison among the female Han students with different BMI in the 3 events:sit-ups,800 m running and sit-and-reach(P<0.05).The physical fitness indexes of the low weight group and the normal weight group were better than those of the overweight group and the obese group.The BMI of male students was positively correlated with their records of 50 m running and 1000 m running,and the BMI of female students was positively correlated with their 800 m running.While there was negative correlation between the BMI and the standing long jump and pull-ups records of male students and between the BMI and the standing long jump and sit-ups records of female students.Conclusion:BMI is correlated with the physical fitness index of college students,and the body quality of the low weight group and the normal weight group is better than that of the overweight group and the obese group.