MENSTRUAL STATE AND EXERCISE AS DETERMINANTS OF SPINAL TRABECULAR BONE-DENSITY IN FEMALE ATHLETES
MENSTRUAL STATE AND EXERCISE AS DETERMINANTS OF SPINAL TRABECULAR BONE-DENSITY IN FEMALE ATHLETES
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DOI：
10.1136/bmj.301.6751.516
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发表时间：
1990-09-15
影响因子：
105.7
通讯作者：
REEVE, J
中科院分区：
文献类型：
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作者：
WOLMAN, RL;CLARK, P;REEVE, J
目的：探讨闭经和高强度背部运动对女运动员腰椎骨密度的影响。设计：横断面研究比较闭经与闭经运动员、赛艇运动员与非赛艇运动员。地点：英国奥林匹克医疗中心，诺斯威克公园医院。患者：46名优秀女运动员，其中赛艇运动员19名，跑步运动员18名，舞蹈运动员9名，其中闭经25名，全经21名。主要结果测量：腰椎骨小梁骨密度通过计算机断层扫描测量。结果：闭经运动员的平均骨小梁骨密度为42 mg/cm3(95%可信区间22 ~ 62 mg/cm3)，闭经运动员的骨小梁骨密度低于闭经运动员；这一差异非常显著（p = 0.0002）。平均骨小梁骨密度为21 mg/cm3 (1 ~ 41 mg/cm3)，非赛艇运动员比赛艇运动员低；这也是显著的（p = 0.05）。两种效应之间无交互作用（p = 0.28）。结论：大强度运动对腰椎的影响部分补偿了闭经对脊柱小梁骨密度的不利影响。
Objective: To study the effects of amenorrhoea and intensive back exercise on the bone mineral density of the lumbar spine in female athletes. Design: Cross sectional study comparing amenorrhoeic with eumenorrhoeic athletes and rowers with non-rowers. Setting: The British Olympic Medical Centre, Northwick Park Hospital. Patients: 46 Elite female athletes comprising 19 rowers, 18 runners, and nine dancers, of whom 25 were amenorrhoeic and 21 eumenorrhoeic. Main outcome measure: Trabecular bone mineral density of the lumbar spine measured by computed tomography. Results: Mean trabecular bone mineral density was 42 mg/cm3 (95% confidence interval 22 to 62 mg/cm3) lower in the amenorrhoeic than the eumenorrhoeic athletes; this difference was highly significant (p = 0.0002). Mean trabecular bone mineral density was 21 mg/cm3 (1 to 41 mg/cm3) lower in the non-rowers than the rowers; this was also significant (p = 0.05). There was no interaction between these two effects (p = 0.28). Conclusion: The effect of intensive exercise on the lumbar spine partially compensates for the adverse effect of amenorrhoea on spinal trabecullar bone density.