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The Relationship among Sexual Development,Bone Development and Height Spurt in 9～15-year-old Females

Qiong Li

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Abstract

Objective:To study the relationship among sexual development,bone development and height spurt in adolescent females.Methods:The height and sexual development of 248 females aging 9~15 were measured in 2002~2003 in Guiyang,China.X-ray was used to check the development of their left carpal bones and the adolescent height spurt status was evaluated according to X-ray pictures and based on Grave's index.A one-year follow-up observation for body height of these girls was carried out.Results:Peak height velocity(PHV)occurred mainly at the beginning of breast development.Some of the girls beyond 8-years old without signs of sexual development also reached the stage of PHV.Conclusion:The breast development is recommended as one of the indices to predict the adolescent height spurt for 9~14-year-old females.

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Objective:To study the relationship among sexual development,bone development and height spurt in adolescent females.Methods:The height and sexual development of 248 females aging 9~15 were measured in 2002~2003 in Guiyang,China.X-ray was used to check the development of their left carpal bones and the adolescent height spurt status was evaluated according to X-ray pictures and based on Grave's index.A one-year follow-up observation for body height of these girls was carried out.Results:Peak height velocity(PHV)occurred mainly at the beginning of breast development.Some of the girls beyond 8-years old without signs of sexual development also reached the stage of PHV.Conclusion:The breast development is recommended as one of the indices to predict the adolescent height spurt for 9~14-year-old females.

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Available abstract

Objective:To study the relationship among sexual development,bone development and height spurt in adolescent females.Methods:The height and sexual development of 248 females aging 9~15 were measured in 2002~2003 in Guiyang,China.X-ray was used to check the development of their left carpal bones and the adolescent height spurt status was evaluated according to X-ray pictures and based on Grave's index.A one-year follow-up observation for body height of these girls was carried out.Results:Peak height velocity(PHV)occurred mainly at the beginning of breast development.Some of the girls beyond 8-years old without signs of sexual development also reached the stage of PHV.Conclusion:The breast development is recommended as one of the indices to predict the adolescent height spurt for 9~14-year-old females.

Key concepts: Growth spurt, Physical development, Breast development, Medicine, Body height, Bone development, Demography, Pediatrics

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