大学生运动参与对体质健康影响的多元回归分析

Multiple Regression Analysis of the Influence of College Students Sports Participation on their Physical Health

以芜湖职业技术学院2018级1271名学生为样本,通过问卷调查和体质测试成绩获得5个因变量与8个自变量的数据。在对原始数据进行预处理和标准化的基础上,运用多元回归分析的数理思想,对因变量与自变量依次做相关性分析、主成分分析和偏最小二乘回归分析。分别研究各个自变量对因变量的影响程度,联系教学实际,对进一步改革体育课程教学提出建议。建立大学生身体素质综合评价的主成分分析模型和大学生身体素质指标预测的多元回归模型。

1271 students of grade 2018 in Wuhu Institute of Technology were selected as samples,and the data of 5 dependent variables and 8 independent variables were obtained through questionnaire survey and physical test data.On the basis of preprocessing and standardizing the original data and by use of the mathematical thought of the multiple regression analysis,the correlation analysis,principal component analysis and partial least squares regression analysis of dependent variables and independent variables were carried out in turn.This paper studies the influence degree of each independent variable on dependent variables,and combining with the teaching practice,puts forward suggestions for further reforming the teaching of P.E.courses.the principal component analysis model of comprehensive evaluation of college students physical fitness and the multiple regression model of college students physical fitness index prediction are constructed.