An Analysis Of Factors Influencing The 800-meter Race For Female Junior High School Girls In Dalian

Young people are the future of the country,hope of the nation,the physical health of young people is a prerequisite for the prosperity of the country and nation.In recent years,the economy has developed rapidly.The quality of life of the masses of the people has also gradually improved,and the students’ physical conditions have also changed.There have been a number of disorders,particularly obesity and depressive illness,need to be concerned about the school,parents and the community.The increase in the number of obese people has led to a decline in the endurance and strength of students.Junior middle school students,as an important part of the youth group,have great power to promote social development.Therefore,while cultivating the excellent quality of junior middle school students,we should also pay attention to the development of the physical health level.This article takes the 800-meter grades of girls in key middle school students in Dalian as the research object,taking a total of 1200 eighth-grade girls in 6 districts in Dalian as the subjects of investigation,and using literature,questionnaires,mathematical statistics,and logical analysis and other related methods.To compare and analyze the results of the800-meter race in the physical education of girls in key junior high schools in Dalian and other physical fitness tests,and conduct in-depth research on the influencing factors of the800-meter running scores of key junior high school girls in Dalian from multiple angles.,put forward improved countermeasures.The results of the study are as follows: The physical health of female junior high school students in Dalian is not high,and the health level needs to be improved.1.In the body shape index,the proportion of girls with overweight and obesity in junior high school is high,and the number of girls with light weight is quite large;2.In the physical fitness index,the results of lower grades of 50-meter run and 800-meter run for junior high school girls are higher,and the students’ flexibility is higher.And the endurance of muscle endurance needs to be improved.3.Among the physical performance indicators,the number of excellent vital capacity scores is low,more than half of the students only pass the pass line standard;4.The junior high school girls’ interest in 800-meter runs is not high;most of them have fears.Adhere to a long time engaged in physical exercise students only a minority;most students deal with the "extreme" way is unreasonable.There are many factors affecting girls’ 800-meter run achievement in junior high school.1.The height and body mass index(BMI),vital capacity and vital capacity body mass index affect the 800-meter run.Unilateral height and weight results have no effect on the 800-meter run.2.Students’ explosiveness and jumping power are not related to the student’s 800-meter running performance.The body’s flexibility,strength and endurance level have a great influence on the 800-meter performance.The factors that determine the 800-meter performance include the vital capacity and vital capacity weight.The results of the index;3.In addition to the impact of the students’ own physical,students’ attitude to the 800-meter run,physical exercise and the way to deal with the "pole" can also affect the 800-meter run results.Relevant suggestions for the conclusion of the article: 1.Reasonably arrange the students’ diet,while developing the students’ athletic ability.2.Use a variety of means to reduce students’ psychological barriers to the 800-meter run and improve students’ interest in the 800-meter run.3.Schools should carry out extensive sports activities to stimulate students’ initiative in physical exercise.4.Correct student sports learning motivation and strengthen the cultivation of student’s will quality and psychological quality.