身高、体重对青少年骨密度的影响  

The effect of body height and weight on bone mineral density in young boys and girls

作　　者：刘加昌[1] 欧阳巧洪[1] 张瑾[1] 刘青[1] 滕小梅[1] 

机构地区：[1]解放军第三○四医院,北京100037

出　　处：《中国临床康复》2002年第21期3226-3227,共2页Chinese Journal of Clinical Rehabilitation

摘　　要：目的观察青少年时期(6～18岁)男女骨密度(BMD)和身高、体重的变化规律。方法利用双能X线骨密度仪对1008例健康男女学生行全身扫描,按性别不同,每1岁分一个组。结果6～14岁女孩和6～16岁男孩其身高、BMD和BMC年增长较快(P<0.05～0.001),其后男女孩的身高、BMD和BMC年增长就都不明显(P>0.05)。12岁以前女孩和14岁以前男孩其身高与BMD呈明显正相关(P<0.01～0.001,r=0.402～0.814),之后身高与BMD无相关性。6～18岁男女孩体重与BMD始终呈显著性正相关(P<0.001,r=0.654～0.864)。结论青少年男女身高、BMD和BMC生长发育的重要时期是:女孩在14岁以前,男孩在16岁以前。身高和体重对BMD都有影响,但以体重对BMD的影响更大。Objective To observe changes in bone mineral density(BMD),the body height and weight in young b oys and girls from 6～18years old in Beijing area.Methods 1008healthy young boys and girls und ergoing whole body scanning with dual energy X-ray bone densitometer were divided into grou ps according to sex and age.Results The body height,BMD and BMC of annual growth rate were the fastest in girls from 6～14and boys fr om 6～16years old(P<0.05～0.001),respectively.Thereafter,the body height,BMD and BMC of annual growth rate didn' t significantly increase in boys and girls(P>0.05).BMD of the total body was significan tly correlated with the height in girls under 12years(P<0.001,r=0.485～0.575)and in boys under 14years(P<0.01～0.001,r=0.402～0.814).After-wards,no marked correlation was fou nd between BMD and the height in vario us groups.Nevertheless,the body we ight was always markedly correlated with BMD in boys and girls(P<0.001,r=0.654～0.864).Conclusions The body height,BMD and BMC in young b oys and girls the important growth periods were in girls under 14years and in boys under 16years.Although both body height and weight might affect BMD,the latter had strong effect on B MD in teen-agers.

关 键 词：青少年 骨密度 骨矿含量 身高 生长发育 

分 类 号：R179[医药卫生—妇幼卫生保健]