青少年跟骨骨密度与骨矿脂肪肌肉含量的关系  

The relationship between calcaneal bone mineral density and bone mineral, fat and muscle content in adolescents

作　　者：吴斌[1] 白峰华[2] 林明侠[1] 林坚平[1] WU Bin;BAI Fenghua;LIN Mingxia;LIN Jianping(Department of Orthopedics,Hainan General Hospital,Haikou,570100,China)

机构地区：[1]海南省人民医院骨科,海口570100 [2]海南省人民医院科教处

出　　处：《中国学校卫生》2019年第9期1360-1362,共3页Chinese Journal of School Health

摘　　要：目的探讨青少年跟骨骨密度与骨矿、脂肪、肌肉含量的相关性,为增加青少年骨量与骨密度、促进骨骼健康提供参考。方法选取368名在海南省人民医院接受健康体检的青少年作为研究对象,测定跟骨骨密度、骨矿含量、脂肪含量和肌肉含量,比较不同年龄段、不同性别青少年骨密度及体成分测试结果,并分析跟骨骨密度与骨矿、脂肪及肌肉含量的相关性。结果男生的宽频超声衰减值(BUA)、肌肉量、骨矿量均高于女生,脂肪量低于女生,差异均有统计学意义(t值分别为13.51,10.65,4.52,-7.55,P值均<0.05)。青少年跟骨骨密度与体质量指数(BMI)、骨矿量、肌肉量均呈正相关(r值分别为0.39,0.42,0.69,P值均<0.05)。不同年龄段男生的BUA,BMI,肌肉量及骨矿量差异均有统计学意义(F值分别为7.95,8.63,6.96,5.01,P值均<0.05)。不同年龄段女生的BUA、脂肪量、肌肉量、骨矿量比较,差异均有统计学意义(F值分别为8.65,10.33,7.96,4.87,P值均<0.05)。12,13岁青少年的跟骨BUA值与BMI、肌肉量相关均无统计学意义(P值均>0.05),而14,15,16岁青少年的跟骨BUA值与BMI、肌肉量均呈正相关(P值均<0.05)。结论青少年跟骨骨密度与骨矿、肌肉含量密切相关,与脂肪含量无关。Objective To investigate the correlation between calcaneal bone mineral density and bone mineral, fat and muscle content in adolescents. Methods A total of 368 adolescents who received health examination in Hainan People’s Hospital were selected as the study subject. Calcaneal bone mineral density, bone mineral content, fat content and muscle content of adolescents were measured. Bone mineral density and body composition of adolescents of different ages and sexes were compared. The correlation between calcaneal bone mineral density and bone mineral content, fat and muscle content were analyzed. Results The BUA, muscle mass and bone mineral content of boys were significantly higher than those of girls, and the fat content of boys was significantly lower than that of girls, the differences were of statistical significance(t=13.51, 10.65, 4.52,-7.55, P<0.05). Calcaneal bone mineral density in adolescents was positively correlated with BMI, bone mineral content and muscle mass(r=0.39, 0.42, 0.69, P<0.05). There were significant differences in BUA, BMI, muscle mass and bone mineral content among boys of different ages(F=7.95, 8.63, 6.96, 5.01, P<0.05). There were significant differences in BUA, fat, muscle and bone mineral contents among girls of different age groups(F=8.65, 10.33, 7.96, 4.87, P<0.05). There was no significant correlation between BUA value of calcaneus and BMI and muscle mass in adolescents aged 12-, 13-year old(P>0.05), while BUA value of calcaneus in adolescents aged 14-year old, 15-year old and 16-year old was positively correlated with BMI and muscle mass(P<0.05). Conclusion Calcaneal bone mineral density in adolescents is closely related to bone mineral and muscle content, but not to fat content.

关 键 词：骨密度 脂肪组织 肌肉发育 青少年 

分 类 号：G804.2[文化科学—运动人体科学] R726.8[文化科学—体育学]