|（1.School of Sport Science，Tianjin Normal University，Tianjin 300387，China；2.Tanggu No.13 High School，Tianjin 300451，China)
Abstract: In order to further understand the relations between gender, age, figure and core stability, the authors selected 80 male and female teenage testees age 17 or 13, by means of McGill core stability test and figure tests such as height, weight and body fat percentage tests, compared the core stability test data of the testees of different genders and ages, analyzed the correlations between different figure indexes and core stability test data, and revealed the following findings: there were no significant differences in the core stability series test results of the teenage testees of different genders and ages; there was no significant correlation between teenagers’ height and core stability series test results; weight showed a medium negative correlation only with the result of waist stretching test in core stability series tests; BMI showed a medium negative corre-lation with the results of waist stretching test and right lateral bridge test in core stability series tests; body fat percentage showed a very significant medium negative correlation with the results of left and right lateral bridge tests in core stability series tests. Therefore, as for teenage individuals, gender, age and height have no effect on core stability, yet weigh, BMI and body fat percentage have a certain relation with core stability. The authors figured that the selection of core stability test method and the difference of test objects had an important effect on research results.
Key words: sports biomechanics；core stability；figure；teenager