线性回归法制定学龄前儿童体能四项运动指标正常值范围的探讨

Study of Making Normal Values of Preschooler's Four Sport Events with Linear Regression Model.

【目的】 了解学龄前儿童体能素质 ,探讨利用线性回归制定其体能四项运动指标正常值的方法。 【方法】 采用随机整群抽样的方法 ,在武汉市江岸区、江汉区 6所幼儿园对 3 0 7名 4～ 6.5岁儿童进行体能调查。 【结果】 2 0米跑、立定跳远和投掷沙包 ,性别间差异有显著性意义 ,纵跳摸高未发现性别差异 ;四项运动指标在频数分布中呈正偏态 ;另外 ,四项运动指标与年龄、性别、身高和体重相关。 【结论】 在采用建立线性回归方程的方法 ,制定学龄前儿童体能四项运动指标正常值范围时 ,必须将年龄、性别、身高和体重进行量化 ,以全面。

Objective To know preschooler's constitution and to study methods of making normal values of preschooler's physical exertion using linear regression model. Methods Using cluster sampling method,307 preschoolers aged 4～6.5 years were sampled in Jiang'an and Jianghan district in Wuhan,and their physical exertion were measured. Results There is significant differences between boys and girls in 20-meters-running,standing long jump,and throwing sand bag.In jump touching we have not found gender differences.Four sport event's freqency distribution skewed to the left.In addition,there is relation between four sport events and age,sex,height,and weight. Conclusions While making normal values of prechooler's four sport events with linear regression model,the age,sex,height and weight should be considered in order to evaluate preschooler's constitution and physical exertion exactly and completely.