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Effect of Habitual Exercise on Bone Mineral Density of Pubescent.

习惯性运动对青春期骨矿物质密度的影响。

基本信息

批准号：
07680132
负责人：
MIYAMOTO Shoji
金额：
$ 1.28万
依托单位：
Miyazaki Municipal University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07680132/
关键词：
menstrual period bone mineral density exercise pubescent 月経青年期前エストラジオール

项目摘要

This study was conducted to clarify the effects of menstrual periods on bone formation in girl athletes during pubescent. The subjects were 13 girl athletes (aged13.4) and a control group consisting of 10 girls (aged 13.8). The menstrual cycles of the subjects were recorded for 3 months using information gathered from girls. The seven athletes who had menstrual periods every 26-31 days were classified as having regular menstrual periods. The other 6 who did not were classified as having irregular menstrual periods. In the control group, 5 girls had regular menstrual periods and 5 had irregular menstrual periods. Weight, fat ratio, non-fat non-bone mineral content ratio, bone mineral content (BMC) and the bone mineral density (BMD) near the thigh bone were measured at the beginning of the study and the third year. Eseragiol (E2) was measured 7 days after the beginning of menstrual periods. The results are as follows.1)Looking at yearly changes in weight, fat ratio, non-fat non-BMC ratio and BMC in each group, the weight of those with regular menstrual periods increased significantly. Significant increases in weight and fat ratio were also seen in the control group. 2)The BMD of the control group was relatively lower than that of both the regular menstrual period group and irregular menstrual group after three years, though the difference was not significant. 3)Looking at yearly changes in the BMD near the thigh bone, athletes tended to show increases over the years, while decreases were more prominent in the control group. 4)there was no apparent relation between E2 and BMD.

本研究旨在探讨月经周期对青春期女运动员骨形成的影响。研究对象为13名女运动员（13.4岁）和10名女运动员（13.8岁）。使用从女孩那里收集的信息记录受试者的月经周期3个月。每26 - 31天月经一次的7名运动员被归类为月经规律。其他6名没有被归类为月经不规律。对照组月经规律5例，月经不规律5例。在研究开始和第三年测量体重、脂肪比、非脂肪非骨矿物质含量比、骨矿物质含量（BMC）和股骨附近的骨矿物质密度（BMD）。在月经开始后7天测量Eseragiol（E2）。结果表明：1）从各组体重、体脂率、非脂非矿物质含量及矿物质含量的年变化来看，月经规律组体重明显增加。在对照组中也观察到体重和脂肪比显著增加。2)3年后，对照组的骨密度相对低于月经规律组和月经不规律组，但差异无统计学意义。3)观察大腿骨附近BMD的年度变化，运动员倾向于显示多年来的增加，而对照组的减少更为突出。4)E2与BMD无明显相关性。