【摘要】 目的:探讨金华市青春期学生生长发育阶段骨密度变化规律的性别差异。方法:测量金华四中40名初二学生的身高、体重和跟骨定量超声骨密度,对比分析两次测试骨密度的变化。结果:骨密度沉积过程在青春期呈波浪式,每次测试都存在着发育状况差异;全部受试者6个月前身高与跟骨硬度指数无显著相关性;体重与硬度指数无相关性;6个月后身高与硬度指数呈直线正相关,体重与硬度指数呈直线正相关。结论:青春期男生14~15岁出现骨矿化高峰期,6个月内就有显著增长,将接近成人骨量;体重较大时,承受较大负荷作用的骨骼处有较高的BMD,表明生长发育期加强体力活动有助于骨骼增长。更多还原

【Abstract】 Objective:A discussion on the gender difference of bone mineral density change rule under the growth and development stage of puberty students in Jinhua.Methods:Measure 40 students of height,weight and quantitative ultrasound bone mineral density,comparative analyzes the changes of bone mineral density in two tests.Results:Bone mineral density process of sedimentation presents wave mode in puberty,every times has the difference; 6 months before,the height and bone hardness of whole subject has no significantly correlation; the weight and hard index has no significantly correlation; 6 months later,present straight line correlation of height and hard index,the weight and hard index present a straight line correlation.Conclusion:The fastigium of bone mineralization shows in 14 ~15 years old puberty boys,significantly increasing in 6months,approach adults bone mass; the bigger weight,there has the function of bear more load in bones,shows that physical activity contribute to the increase of bones.更多还原