The Relationship Between The Executive Function And Gross Motor Coordination And BMI Among The Children Of 9-10 Years Old

Research purposes:Most of the measurement tools for the gross motor coordination of children aged 9-10 are procedural evaluations.Although the standards of procedural evaluations pay attention to the performance of the process,they are relatively difficult to operate and the scoring requirements are complex.The results of coordinated evaluation of the physical body in China have not Unity;At present,there are few related researches on children's gross motor coordination and executive function and BMI in China.Most of them focus on the difference in age.The lack of research support for the differences between different gender factors is controversial.Therefore,this study pre-adopts the more commonly used child physical coordination outcome evaluation tool in the world,and further studies the gross motor coordination and executive function and BMI of children aged 9-10 years old in China.First,the reliability and validity of the results evaluation tool for physical coordination in China are tested;second,the relationship between gross motor coordination and executive function in children 9-10 years old;and the relationship between gross motor coordination and BMI in children 9-10 years old;finally,explore gross motor coordination of children aged 9-10 the differences in executive function and BMI between children of different genders.Research method:The measurement method is mainly used for 286 primary school students aged 9-10(fourth grade)to perform gross motor coordination,executive function and BMI measurement.After removing invalid data,272 gross motor coordination and BMI samples and executive function samples are finally retained.The KTK tool developed by the German Kiphard and Schilling team was used to measure children's gross motor coordination,including four items: walking backwards,hopping for height,jumping sideways;walking sideways;using the executive function E-prime software program written by Professor Chen Aiguo of Yangzhou University to test and execute Functions,including three sub-dimensions: inhibition,updating and switching;use the body square ST-2000(5000)-A2(3)Z height and weight tester to measure height and weight and calculate BMI.Enter the processed effective data into the SPSS22.0 software package,use the mean and standard deviation to describe the gross motor coordination,execution function,and BMI;KS non-parametric test is used to analyze whether the data conforms to the normal distribution;rank sum test is used to analyze the execution function Coordinating gender and BMI grouping differences;Spearman correlation coefficient analysis explores the correlation between gross motor coordination and executive function and BMI.Research result:(1)The internal consistency reliability of the KTK test in China is 0.75,and the retest reliability is 0.96;the standard validity is 0.53,and the structural validity is 0.65-0.80.(2)Significant gender differences existed in the KTK Coarse Action Coordination Test Project for the Backward Balance Beam Project(p = 0.016 <0.05),the Inhibition Function in the Executive Function(p = 0.018 <0.05),and the BMI(p = 0.000 <0.001).(3)The executive function of children aged 9-10 years has nothing to do with the gross motor coordination measured by KTK,but in different genders,the refresh function of boys is positively correlated with the balance beam project of backward movement in the gross motor coordination(? = 0.197,p <0.05).(4)Gross motor coordination measured by BMI and KTK for children aged 9-10 years is negatively related to the backward balance beam project,one-leg jump project,lateral movement project,and gross gross motion coordination,except for the horizontal jump event.Spearman correlation coefficient Between-0.3 ~-0.1,and there was a negative correlation between BMI and gross motor coordination measured by KTK for boys at this age,but no statistically significant correlation for girls.Analysis conclusion:First of all,the reliability and validity of the KTK in China has been tested,and it can be popularized and used in the study of gross motor coordination.Second,there is no correlation between 9-10 years old children's gross motor coordination and executive function.Finally,9-10 years old children's gross motor coordination is closely related to BMI.The coordination ability in the normal body weight range is better than that of low-weight and overweight or obese children.Boys' gross motor coordination is more closely related to BMI,but girls have no relationship.