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采用放射免疫法，测试了１７名持续参加一年以上有氧健身操运动和１６名未参加运动的中年女性在卵泡期空腹状态下血清促卵泡激素（ＦＳＨ）、黄体生成素（ＬＨ）、雌二醇（Ｅ２）、孕酮（Ｐ）和睾酮（Ｔ）的基础分泌值。实验结果表明：运动组血清Ｅ２和Ｔ的基础分泌值明显高于非运动组（Ｐ＜００５），而血清Ｐ、ＦＳＨ和ＬＴ两组均无明显差异（Ｐ＞００５）。上述结果提示，中年女性保持较高水平的Ｅ２和Ｔ对预防骨质疏松具有重要作用。
The results of radioimmunoassay showed that 17 middle-aged women, who continued to participate in aerobics exercises more than one year and 16 who did not participate in exercise, had higher levels of serum follicle-stimulating hormone (FSH), luteinizing hormone (LH) Estradiol (E2), progesterone (P) and testosterone (T) basal secretions. The experimental results showed that the basal secretion of serum E2 and T in exercise group was significantly higher than that in non-exercise group (P <005), but there was no significant difference in serum P, FSH and LT (P> 0.05). These results suggest that middle-aged women to maintain a high level of E2 and T plays an important role in the prevention of osteoporosis.