摘要
目的 : 通过对 50名正常学龄前儿童体成分测定 ,评价其营养状况和生长发育水平。方法 : 采用双能 X线吸收测量法 ( dual- energy X- ray absorptionmetry,DXA)测量全身及各部位的体成分。结果 : 学龄前儿童全身的骨矿物质含量 ( BMC)、骨密度 ( BMD)、体脂肪含量( FTM)、体脂百分含量 ( % BF)、瘦体组织含量 ( LTM)分别为 :( 4 63.3± 80 .9) g、( 0 .69± 0 .0 4 ) g/cm2 、( 391 7.1± 1 2 81 .6) g、( 2 1 .8± 4.9) %、( 1 3391 .4± 1 82 3.8) g;BMC、LTM均随着年龄的增加而相应增加 ;男童全身 BMD和 LTM显著高于女童 ;女童的全身 FTM、躯体脂肪含量与下肢脂肪含量的比值 ( Ft/1)、躯体脂肪含量与上肢脂肪含量比值 ( Ft/a)均显著高于男童。结论 : DXA法可用于小儿生长发育和营养状况评价。
Objective: Our study described the body composition of 50 preschool children aged from 4 to 6 years old and evaluated their nutritional and developing status. Methods: Body composition was measured with dual energy X ray absorptiometry(DXA). Results: BMC, BMD, FTM, %BF, LTM of all children were (463.3±80.9)g、(0.69±0.04)g/cm 2、(3917.1±1281.6)g、(21.8±4.9)、(13391.4± 1823.8 )g respectively. The relationships between BMC and age and between LTM and age were positively correlated. BMD and LTM of the boys were significantly higher than those of the girls. On the contrary, FTM, %BF, F t/l and F t/a of the girls were obviously greater than those of the boys. Conclusion: DXA method may be used to evaluate the nutritional and developing status in preschool childran.
出处
《营养学报》
CAS
CSCD
北大核心
2001年第2期157-159,共3页
Acta Nutrimenta Sinica
基金
美国中华医学基金!( CMB
No.91-5 49)
