Study On The Relationship Between Physical Activity And Executive Function And Academic Performance Of Overweight And Obese Children

In recent years,the number of overweight and obese children and adolescents is growing rapidly,and the rate of overweight and obesity among children and adolescents has reached a level that is not optimistic.Overweight and obese children not only have a low level of physical health,but also show a weak will,depression,anxiety and other adverse psychological tendencies in daily life.Appropriate physical activities can improve the physical fitness of children and adolescents,and reduce the overweight and obesity rate.Continuous study results show that moderate physical activity can improve academic performance by improving brain function.It is not good for children and adolescents if we only pay attention to the academic performances but ignore the impacts of physical activities.Overweight and obese children,as a special group of primary school students,further studies about their physical activities,executive functions and academic performances are needed.Therefore,this study will be focus on the relationship between overweight and obese children's physical activities,executive functions and their academic performances.Also,this study aims to change the public's prejudice on physical activity so they could notice the importance of physical activity.As a result,it will promote the reform of education and fully implement the party's education policies,so as to promote the overall development of students.In this study,questionnaire survey method and psychological measurements were used.260 overweight and obese students in grade 4 and 5 from three schools in Jingzhou,Hubei and Yueyang,Hunan were investigated.240 questionnaires were collected,with a recovery rate of 92.3%.After matching physical activity,executive function and academic performance,and selecting and eliminating invalid data,the final effective data of 218 questionnaires were used,the effective rate is 90.8%.Among them,135(61.9%)were in grade 4,83(38.1%)were in Grade 5.122(56.0%)were boys and96(44.0%)were girls.In order to explore the relationship between physical activity,executive function and academic performance of overweight and obese students,multiple variance and linear regression were used to analyze the data.The result would provide the oretical and practical basis to promote the academic performance of primary school students' through physical activities.The results showed that:(1)the mean values of physical activity,executive function and academic performance of overweight and obese children were not statistically significant(P > 0.05).(2)Compared with grade 5,the average of static total time,static total energy consumption and dynamic total energy consumption of studentsis statistically significant(P < 0.05);the average of executive function is not statistically significant(P > 0.05);the average of academic performance is statistically significant(P< 0.05).(3)The static total energy consumption had statistical significance(P < 0.05)in the prediction of Chinese achievement,mathematics achievement,English achievement and total academic score;the dynamic total energy consumption had statistical significance(P < 0.05)in the prediction of English achievement and total academic score;the conversion function had statistical significance(P < 0.05)in the prediction of English achievement and total academic score.Conclusion:(1)On the demographic variable of gender,there is no difference in physical activity,executive function and academic performance.(2)The total static time,total static energy consumption and total dynamic energy consumption of overweight and obese children in Grade 5 were significantly higher than those in grade 4;there was no difference in executive function;and their academic performance was significantly better than that in grade 4.(3)The static total energy consumption of physical activity can predict the Chinese,mathematics and English,and the total academic performance of overweight and obese children;the dynamic total energy consumption can predict the English and academic performance of overweight and obese children;the conversion function can predict the English and academic performance of overweight and obese children.