蒙古族7～18岁青少年生长发育指标的主成分分析

发布时间：2018-08-22 11:32

【摘要】：目的综合评价蒙古族青少年生长发育状况,为探讨少数民族学生体质科学的评价方法提供参考。方法采用主成分分析,对通辽市7~18岁蒙古族6 607名青少年生长发育的身高、坐高、体重、胸围、腰围、臀围、上臂部皮褶厚度、肩胛部皮褶厚度、腹部皮褶厚度、脉搏、收缩压、舒张压、肺活量、握力、坐位体前屈、立定跳远、引体向上、50 m跑、800 m跑等19个指标进行综合评价。结果蒙古族青少年生长发育指标特征根λ1的4个主成分累积贡献率达到67.312%,被确定为重要主成分,建立主成分函数表达式。19个生长发育指标可以用形态发育因子、体脂含量肥胖因子、功能状况因子和体育素质因子4个主成分来概括。结论运用主成分分析可以消除原始变量间的信息重叠,合理地综合评价蒙古族青少年的生长发育状况。
[Abstract]:Objective To evaluate the growth and development of Mongolian adolescents comprehensively and to provide references for the scientific evaluation of physique of minority students.Methods Principal component analysis was used to analyze the height, sitting height, weight, chest circumference, waist circumference, hip circumference, upper arm skin fold thickness, scapular skin fold thickness and abdomen of 6 607 Mongolian adolescents aged 7-18 in Tongliao City. 19 indexes, such as skin fold thickness, pulse, systolic blood pressure, diastolic blood pressure, vital capacity, grip strength, sitting position flexion, standing long jump, prick up, 50 m run, 800 m run, were evaluated comprehensively. Results The cumulative contribution rate of 4 principal components of characteristic root lambda 1 of Mongolian adolescents'growth and development index reached 67.312%, which was identified as an important principal component and the principal component function was established. The 19 growth and development indicators can be summarized by four principal components: morphological development factor, body fat content obesity factor, functional status factor and sports quality factor.
【作者单位】：内蒙古民族大学;苏州大学医学部公共卫生学院;通辽市疾病预防控制中心;
【基金】：2014年度教育部人文社会科学研究规划基金项目(14YJAZH110) 内蒙古民族大学2013年度研究生科研创新项目(10136201419)
【分类号】：R179

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