【作者】 黄锟；

【导师】 陶芳标； 胡传来； 任安；

【作者基本信息】 安徽医科大学 ， 儿少卫生与妇幼保健学， 2006， 硕士

【摘要】 目的 描述7～18岁儿童青少年体成分人体测量指标的年龄和性别分布特征，分析不同体成分测量指标及派生指标的相关性与一致性，探讨体成分的测量指标及其体脂分布特征与肺通气功能的相关性。 方法 采用整群抽样的方法，以2005年全国学生体质与健康调研宿州地区2400例样本为研究对象。根据身高、体重以及上臂、肩胛下角和腹部皮脂厚度（skinfold thicknesses，SF）的测定，计算体质指数（body mass index，BMI），根据长岭晋吉公式（以下简称长岭公式）推算体脂百分含量（percent body fat，PBF）和瘦体重含量（lean body weight，LBW），描述男女儿童青少年各项指标的年龄变化特征，通过秩和检验和两样本t检验分析各年龄组间的性别差异。 根据学生自愿参加的原则，以在宿州地区学生体质与健康调研过程中抽取的525名儿童青少年为研究对象进行进一步测试。采用生物电阻抗法（bioelectrical impedance analysis，BIA）进行身体成分测定，偏相关分析BIA测定的体成分指标与长岭公式推算的PBF、LBW的相关性，以及各体成分指标与BMI的相关性。为进一步验证长岭公式法与BIA测定体成分的有效性，选用29名经过皮脂厚度、BIA和双能X线吸收法（dual-energy X-ray absorptiometry，DXA）测定的9～12岁儿童青少年，以DXA作为参考标准，通过配对t检验和Bland-Altman分析，检验长岭公式法与BIA测定的体成分与DXA的一致性。 同样以在体质调研过程中抽取的525名儿童青少年为研究对象进行肺通气功能测试，测试结果选用用力肺活量（forced vital capacity，FVC）、肺活量指数（FVC／体重）、第1秒用力呼出量（forced expiratory volume in 1s，FEV₁）、1秒率（FEV₁％）、最大通气量（maximal voluntary ventilation，MVV）、单位体表面积最大通气量（MVV／BSA）进行分析，PBF和LBW选用BIA测定的指标。协方差分别分析更多还原

【Abstract】 Objectives To describe the distribution of anthropometric variables on body composition by age and gender in children and adolescents aged 7 to 18, analyze the association and consistence among different measured variables and derived indicators and explore the effects of body composition and distributed patterns of body fat on pulmonary ventilation function in children and adolescents.Methods A total of 2400 participants were recruited in Suzhou by cluster sampling in the Physical Fitness and Health Surveillance of Chinese School Students, 2005. Height, weight, triceps, subscapular and abdominal skinfold thickness (SF) were measured according to standard procedures. Body mass index (BMI) was derived from height and weight. Percent body fat (PBF) and lean body weight (LBW) were calculated by using the Nagamine and Suzuki equation (from the sum of triceps and subscapular SF). The characteristics of BMI, SFs, PBF and LBW with age were described separately in boys and girls. Independent-samples t-test and two-independent-samples nonparametric test were performed to exmine the gender differences among different age’s groups.Five hundred and twenty five children and adolescents among the above 2400 participants took part in our study according to their informed consents. First, body composition was measured by bioelectrical impedance analysis (BIA). Then, interrelationships for body composition variables (PBF, fat mass and LBW measured by BIA and SF-based equation respectively) and their association with BMI were determined by use of partial correlations, controlling for age. Meanwhile in 29 children aged 9 to 12 Bland-Altman procedure and paired-sample t-test were used to examine the pair-wise comparison between PBF measured by dual-energy X-ray更多还原