膳食钙摄入量与青春前期女童骨量关系的研究  

ASSOCIATION OF HABITUAL CALCIUM INTAKE WITH BONE MASS IN PREMENARCHE CHINESE GIRLS

作　　者：王玲[1] 陈裕明[1] 何国鹏[1] 肖兴才[1] 苏宜香[1] 

机构地区：[1]中山大学公共卫生学院营养系,广州510080

出　　处：《营养学报》2007年第3期239-241,245,共4页Acta Nutrimenta Sinica

基　　金：国家自然科学基金资助项目(No.30271120)

摘　　要：目的:研究青春前期女童膳食钙摄入量与骨量的关系,为指导合理钙营养提供科学依据。方法:采用双能X线骨密度测量仪测量年龄在10±1岁的194名青春前期女童全身及多位点骨密度和骨矿物质含量,采用食物频数及3d膳食询问法调查膳食钙摄入量,问卷法调查体力活动。结果:日均钙摄入量与所测各位点骨矿物质含量及骨密度均呈显著正相关;日均钙摄入量平均从257mg增加到759mg,不同位点的骨矿物质含量和骨密度分别增加13%～22%和3.6%～16%。结论:增加青春前期女童膳食钙摄入量有助于获得较高骨量和骨密度。Objective： To investigate the association of calcium intake with bone mass in premenarche girls. Method： Bone mineral density （BMD） and bone mineral content （BMC） at the whole body, lumbar spine （L1-L4） and left hip of 194 premenarche girls （10±1 years old） were measured by dual-energy X-ray absorptiometry （DEXA）. Dietary calcium intakes were assessed by food frequency questionnaire and 3d weighed diet records. Results： Statistically significant positive correlations between daily calcium intake and bone bone mineral density （BMD） were or bone mineral content （BMC） at all studied bone sites were found （P〈0.01）. Greater habitual calcium intake was associated with better BMC or BMD at the most of the studied sites. Mean BMC and BMD were enhanced by 13.0%-22.0% and 3.6%-16.0% when habitual mean calcium intake increased from 256.5 mg/d to 759.4 mg/d, respectively. Conclusion： Greater habitual calcium intake is associated with better BMC or BMD in premenarche girls. Adequate calcium intake might be helpful for premenarche girls to improve their bone mass.

关 键 词：钙 骨密度 骨矿物质含量 青春前期 女童 

分 类 号：R151[医药卫生—营养与食品卫生学]