同体成分10岁男童性发育与体脂及睾酮水平追踪研究
身体成份,,身体成份；性；生长和发育；性激素类；儿童,1对象与方法,2结果,参考文献
【摘要】 目的探讨不同体成分青春早期男孩性发育与体脂及睾酮水平之间的相互关系，为儿童青少年生长发育研究提供依据。方法 选取66名10岁男童，按年龄、身高、第二性征进行1∶1∶1匹配，追踪观察3 a，检测其体成分、性发育状况，测定睾酮水平。结果3组男童的体脂肪和瘦体重均随年龄增加而增加；肥胖组男孩阴茎长度小于中等组和消瘦组；肥胖组的阴茎长度和横径与体脂肪呈负相关，与睾酮水平呈正相关。结论 青春早期肥胖男孩性器官发育滞后，与体脂肪和睾酮关系密切。【关键词】身体成份；性；生长和发育；性激素类；儿童
Longitudinal Study on Sexual Development, Body Fat and Testosterone Levels of Boys Aged 10 with Different Body Composition
LIU Li, YAO Xingjia, BAI Yinglong, et al.
School of Public Health, China Medical University, Shenyang (110001), China
【Abstract】 Objective To explore the relationship between sexual development, body fat and testosterone levels in early pubertal boys with different body composition, and to provide evidence for the growth and development of children and adolescents. Methods Sixtysix boys aged 10 years were observed 3 years who were matched to three groups according to age, height and the secondary sexual character. Their body composition, sexual development and testosterone levels were detected. Results Body fat and lean body weight of boys in three groups increased by age; boys' penis length in obese group was shorter than that in medium and thin groups; boys' penis length and width in obese group were negatively correlated with body fat and positively correlated with testosterone levels. Conclusion Early puberty obese boys' sexual organs develop slowly and closely relate to body fat and testosterone. ......
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