用多组逐步判别分析法对城乡学生体质年龄特征的研究

Research on Age Feature of Students' Physique between City and Countryside with Step Discrimination Analysis Methods

为研究城乡学生体质状况的差异和年龄对体质水平的影响，采用多组逐步判别分析法，对广东省城乡７—１０岁小学男生、１９—２２岁大学男生的体质测试指标数据进行分析、研究。研究结果表明：城乡学生体质状况差异依然存在，有随着年龄的增长而逐步缩小的趋势；成年以后城乡间、年龄组间差异不明显。

With step discrimination analysis methods, the research on the physique davita of pupils aged from 7 to 10 and of students aged 19 to 22 were done. The results showed that the difference between students from city and countryside still exists, and the difference gradually decreases while the age increases, the difference between students from city and countryside is not significant and so is the difference bewteen different ages when become adults.