|（1.School of Physical Education，South West University，Chongqing 400715，China；2.Shenzhen Hongling Secondary School，Shenzhen 518000，China）
Abstract: The authors compared the differences in measuring the young college student obesity rate with different obesity determination indexes. The authors measured the body constituents of 65 young college students with a body constituent analyzer (INBODY3.0) made in Korea, and evaluated male and female obesity conditions by re-spectively selecting 4 different indexes (including BF%, BMI, WHR and OBD), and derived the following results: such 4 indexes as BF%, BMI, WHR and OBD produced different body fat standard exceeding detection rates, the differences between male students were significant, while the differences between female students were not signifi-cant; BF% and OBD as well as BMI and WHR were highly correlative, the coefficients of correlation between the 4 indexes and the body fat content as well as BF% and other 3 indexes were somewhat different. The said results in-dicated that when determining body fat and obesity, the BF% index that can reflect the body fat content and per-centage and the WHR index that can reflect body fat distribution should be selected as the first choices; as for such two indexes as BMI and OBD, when they are used to determine youngster’s body constituents and obesity, they should be treated very cautiously, had better be used together with other indexes, since they cannot precisely tell whether the obesity is caused by over fat or by muscularity, and they may fail to check out “invisible obesity” suf-ferers.
Key words: sports medicine；obesity determination index；constitution measurement