骨質疏鬆症是近來國內外中老年學研究中最熱門的課題之一，其中，婦女罹患此症的機率更是特別高。本研究主要的目的在探討:規律運動對停經前婦女之骨密度及性激素影響。本研究以43名身心健康月經正常的婦女為受試對象，其中22名從事規律運動(平均運動年數4.43+ 2.94年)為實驗組，另 外21名不運動的婦女為對照組。兩組受試者年齡、身高、體重、BMI、飲食中鈣攝取量皆相近，且不具影響BMD與性激素的各種疾病、遺傳或服藥等行為。採用DEXA測量受試者L2-L4部位的BMD值，並於彼等月經週期的第20、22與24天的上午8時靜脈抽血Wee '據以按驗性激素中的雌二醇(E2) 與孕睏(P)，結果發現:實驗組的BMD極明顯的優於對照組(P0.05)。此一結果顯示:長期規律運動對於提高停經前婦女BMD具有顯著的功效，但對刺激個體性激素的分泌則未見明顯的作用。

Osteoporosis， especially in the female population， has become prevalent in geriatric studies. The aim of this study was to investigat the effects of regular exercise on bone mineral density (BMD) and secretions of sexual hormones in premenopausal women. A total of 43 healthy Chinese women were enrolled. Amongthem， 22 subjects with history of regular exercises (mean exercise years 4.43 + 2.94 years) were regarded as the experiment group; the other 21 subjects served as controls. Subjects with hereditary and medication histories that might affect evaluation of BMD or serum values of sexual hormones were excluded. There were no statistical significance in age， body height， body weight， BMI， and the calcium content of daily diet between the two groups. DEXA was used to assess BMD of L2- L4 of each subject. Serum values of estradiol (E2) and progesterone (P) in days 20th， 22th， and 24th of the menstrual cycle were compared. The results were that mean BMD of subjects of the experiment group was significantly higher than that of controls (p0.05). Itwas concluded that regular exercise may improve BMD of pre-menopausal Chinese women.The effect of exercise on secretions of sexual hormones deserves further evaluaiton.