摘 要：采用中国教育追踪调查(CEPS)2013—2014 年基线数据，运用门槛回归模型，分析课 外体育锻炼与青少年学业成绩的量效关系。研究发现：(1)课外体育锻炼对青少年学业成绩具有显 著的促进效应；(2)课外体育锻炼对青少年学业成绩促进的量效关系是非线性的，存在显著的门槛 效应，呈现出倒 U 型趋势；(3)青少年平均每天 1.4~2.0 h 的课外体育锻炼可最大效应提高学业成 绩；(4)学业压力越大的青少年越应该保持每天参与适度的课外体育锻炼。
关 键 词：学校体育；课外体育锻炼；学业成绩；门槛回归模型；青少年
中图分类号：G806 文献标志码：A 文章编号：1006-7116(2021)06-0119-07
Effect of extracurricular physical exercise on teenagers’ academic achievement ——An empirical research based on threshold regression model XIANG Zu-bing，ZHANG Yan-ni，LUO Yun-ke，ZHAO Shao-cong
(1.School of Physical Education，Chongqing University，Chongqing 401331，China； 2.Department of Physical Education，Xiamen University of Technology，Xiamen 361024，China)
Abstract: Based on the baseline data of China Education Tracking Survey (CEPS) from 2013 to 2014 and threshold regression model, this study analyzed the dose-effect relationship between extracurricular physical exercise and academic achievement of adolescents. The results show that: (1) extracurricular physical exercise had a significant promoting effect on teenagers’ academic achievement; (2) the dose-effect relationship of extracurricular physical exercise on teenagers’ academic achievement was nonlinear, and there was a significant threshold effect, showing an inverted U-shaped tendency; (3) the average 1.4 to 2 hours daily of extracurricular physical exercise can have the greatest effect on improving academic performance for teenagers; (4) the more academic stress the teenagers had, the more moderate extracurricular physical exercise they should keep every day.
Keywords: school physical education；extracurricular physical exercise；academic achievement；threshold regression model；teenagers