The Study On Body Composition Characteristics Of Shanghai’s Young Swimmers

Using methods of documentary, examination and statistics, this study measures 11-15 years old in Shanghai youth swimming athlete as the research object, through the discussion of Shanghai juvenile swimmers body composition characteristics and combined with different gender, different age, different sports level, the difference of different additional qualifications of body composition analysis, providing scientific basis for the Shanghai youth swimming athletes selecting, the juvenile swimmers body composition evaluation model is set up to provide the reference, and basic training for a swimmer and effectively monitor and to control the athletes’body weight, provide theoretical guidance to promote the athletes performance. This study obtained the results are as follows:1、Shanghai gender adolescent body fat percentage and different sex body mass index (bmi) show significant difference, other various body composition indexes show very significant difference. The man body fat and body fat percentage significantly lower than the woman, the indicators were higher than other women.2、Shanghai adolescent swimmer of male between age groups and the body fat percentage, there was no significant difference of other indicators were very significant differences. Adolescent female swimmer between age groups and the other indicators were very significant differences.3、Shanghai adolescent swimmer of male lower limb muscle mass at the age of 12-13 years old the age increased, most indicators of other items in the growth of this age up to 13-14 years old. Women’s body composition of the indicators are at the age of 12～13 years old the age increased, most slow growth in other ages.4、Shanghai adolescent swimmer of male body fat index in Shanghai at the age of 12～13 no change, body fat percentage index to decline at the age of 12～13 state then slowly rising. Shanghai youth female swimmers body fat percentage. There is no change at the age of 14～15.5、Shanghai adolescent swimmer of male with different levels of motion body fat percentage did not differ significantly between each other, have significant difference of body fat that other indicators were very significant differences.Shanghai youth woman swimmer with different levels of motion body fat percentage did not differ significantly between each other, height,body fat and lower limb muscles have significant difference,other indicators were very significant differences.6、Shanghai adolescent swimmer of male body composition each index and correlation is higher than women’s sports level. The indicators of women’s body composition and movement level are positively correlated, and body composition each index increases with the improvement of sports level, while the man body fat percentage has nothing to do with sports level, the rest of the indicators was a positive correlation with sports level, with the improvement of sports level and growth.7、Shanghai adolescent swimmer of male of different additional qualifications between upper limb muscle mass and trunk muscle mass show very significant difference, other indicators show significant difference. The breaststroke athlete’s body composition indicators than other additional qualifications athletes on the high side. The Shanghai youth woman swimmer in different additional qualifications body composition index there was no significant difference between each other.