A Meta-analysis Of The Effect Of Exercise Intervention On The Physical Fitness Of Middle School Students In My Country

In order to synthesize the previous research on the effects of exercise intervention on the physical fitness of middle school students,and further explore the effect of exercise intervention on the physical fitness of middle school students in China,this article uses the Meta-analysis method to screen relevant articles according to the inclusion and exclusion criteria,and finally included 30 articles,using Review manager 5.3 The software performs statistical analysis on the data collected in the included literature.This study analyzes the physique,physical function,and physical fitness of junior and high school students,and selects height,weight,vital capacity,step test index,standing long jump,pull-ups(male),and sit-ups(female),50-meter run,1000-meter run(male),800-meter run(female),seated body flexion ten quantitative outcome analysis,quantitative analysis results are as follows:In terms of body shape,each outcome index P>0.05,this study failed to prove the effect of exercise intervention on the body shape of middle school students.In terms of physical function,the spirometry P values of junior high school boys,junior high school girls,high school boys,and high school girls are all <0.05,and exercise intervention can promote the respiratory system function of middle school students;the step test index P value of junior high school boys,junior high school girls,and high school boys,high school The step test index P value of girls>0.05,exercise intervention can better promote the cardiovascular system function of junior high school boys,junior high school girls,and high school boys.This study failed to prove the role of exercise intervention in promoting the cardiovascular system function of high school girls.In terms of physical fitness,exercise intervention can better promote lower limb strength of middle school students,waist strength of middle school girls,speed qualities of junior high school boys and junior high school girls and high school girls,and flexibility qualities of junior high school students and high school boys.Failure to prove the effect of exercise intervention on the pull-ups of junior high school boys,the speed quality of high school boys,and the flexibility of high school girls.In addition,the intervention strategies in the study were divided into continuous intervention time,intervention frequency,single intervention duration,"TYK" and "TYK+",types of sports,etc.,and subgroup analysis,and through the subgroup analysis results to study different intervention strategies Promote the physique of middle school students.The conclusion of this paper is as follows:1)This article proves that exercise intervention has a good promotion effect on middle school students' respiratory system function,lower limb strength,speed quality and endurance quality.2)The sub-group method in this article can provide a reference for the subsequent Meta-analysis of the effects of exercise intervention on physical fitness.3)The use of aerobics,ball games and comprehensive multiple sports in the sports intervention can better promote the physique of middle school girls.Rope skipping,comprehensive multiple sports intervention,core or physical training can better Promote the development of the physical fitness of middle school boys.