生长突增期少女骨密度的研究

为了研究少女在生长突增阶段的骨密度变化以及与身高增长速度、第二性征发育和营养状况的关系，作者采用双能Ｘ线骨密度测量仪，先后两次测量６９例少女身体多部位的骨密度，了解其一年中的骨密度变化情况。结果表明：生长突增阶段各个部位的骨密度均随着年龄增长而明显增加，但各部位骨密度增加的幅度和时间并不一致。营养状况（超重与体重不足）和少女的性发育状况与骨密度的增加有密切关系，提示：在青春期加强营养对预防骨质疏松是很有必要的。此外，通过与年轻妇女骨密度的粗略比较，初步了解青春期早期是女性骨密度增长的重要时期。

Studies on Bone Density in Healthy Girls during Their Period of Growth Spurt

Bone mass in 69 healthy girls in their period of growth spurt was measured twice, with an interval of one year, by dual energy X ray bone densitometer to study the relationship between changes in bone density and the speed of height growth, development of secondary sex characteristics and nutritional status. Results showed that bone density in the different sites in the period of growth spurt increased significantly with their age, but with difference in the magnitude of its increase and in the time. Their nutritional status (overweight or underweight) correlated closely with sex development and increase in bone density. It suggests that it is necessary to strengthen nutrient intake during their puberty for preventing from osteoporosis. In addition, early puberty is an important period for the increase in female bone density, as a result of comparison of bone mass between prepuberty girls and young women. The results in this study can provide reference for further studies on bone mass in girls during their puberty.