de Ridder C M, Zonderland M L, Thijssen J H H, Bruning P F, Barth A, Steenbruggen A, Erich W B M
Janus Jongbloed Research Centre, Department of Physiology and Sports Medicine, University of Utrecht, Vondellaan 24, 3521 GG Utrecht, The Netherlands.
Department of Endocrinology, University Hospital Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands.
Am J Hum Biol. 1993;5(3):251-257. doi: 10.1002/ajhb.1310050302.
Plasma levels of gonadotropins, (sex) steroids, SHBG bound fractions of 17β-estradiol (E2) and testosterone (T), and sex-hormone-binding globulin (SHBG) were compared at the onset of puberty in female gymnasts (n = 7) and two groups of schoolgirls with similar anthropometric characteristics. Ten schoolgirls were matched to the gymnasts on the basis of a sum of skinfolds and the waist/hip ratio, while 12 other girls were selected on the basis of the stature and bicristal breadth of the female gymnasts. All girls were in the second stage of breast development (M2) and were classified as being in the first stage (M1) 6 months earlier. When female gymnasts were compared to nonathletic schoolgirls with similar physical characteristics at the same stage of early puberty, the former had significantly lower levels of plasma luteinizing hormone (LH), total and available E2, and T. In conclusion, female gymnasts have significantly lower LH, E2, and T plasma levels than nonathletic schoolgirls in early puberty. The E2 and T plasma levels in early female gymnasts are not related to the individual physical characteristics, i.e., fat mass, short stature, or small bicristal breadth. © 1993 Wiley-Liss, Inc.
比较了女性体操运动员（n = 7）以及两组具有相似人体测量特征的女学生在青春期开始时促性腺激素、（性）类固醇、17β - 雌二醇（E2）和睾酮（T）与性激素结合球蛋白（SHBG）结合的部分以及性激素结合球蛋白（SHBG）的血浆水平。10名女学生根据皮褶厚度总和与腰臀比与体操运动员匹配，另外12名女孩则根据女性体操运动员的身高和双髋宽度进行选择。所有女孩均处于乳房发育第二阶段（M2），6个月前被归类为第一阶段（M1）。当将青春期早期同一阶段具有相似身体特征的女性体操运动员与非运动员女学生进行比较时，前者的血浆促黄体生成素（LH）、总E2和可利用E2以及T水平显著较低。总之，青春期早期女性体操运动员的LH、E2和T血浆水平显著低于非运动员女学生。青春期早期女性体操运动员的E2和T血浆水平与个体身体特征，即脂肪量、身材矮小或双髋宽度小无关。© 1993威利 - 利斯公司。
