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目的 探讨青春早期不同体成分男孩唾液睾酮、雌二醇水平的变化趋势及差异。方法 12 9名 8岁和 10岁男孩 ,分为肥胖、中等、消瘦 3组 ,追踪观察 3年测定体成分和唾液睾酮、雌二醇水平。结果 3组儿童的体脂肪、瘦体重都随年龄增长而增加 ,唾液睾酮、雌二醇水平都有随年龄增加而增长的趋势。 3组男孩的睾酮、雌二醇水平与瘦体重、体脂肪都呈正相关 ;睾雌比 (睾酮和雌二醇之比 )与体脂比呈弱的负相关。结论 不同体成分男孩体内性激素水平不同
Objective To investigate the changes and differences of salivary testosterone and estradiol levels in early adolescent boys with different body composition. Methods 12 9-year-old boys and 10-year-old boys were divided into three groups: obese, moderate and emaciated. The body composition, salivary testosterone and estradiol levels were measured 3 years later. Results Body fat and lean body mass of 3 groups of children all increased with age. The levels of saliva testosterone and estradiol tended to increase with age. Testosterone and estradiol levels in three groups of boys were positively correlated with lean body mass and body fat. Testosterone ratio (testosterone to estradiol ratio) was negatively correlated with body fat ratio. Conclusion Different body composition of male sex hormones in different levels