An Experimental Study On The Effect Of Sand-board Table Tennis Practice On The Naked Eye Distant Vision Of Level 1 Students

Objective: In recent years,myopia among students in our country has shown a trend of high incidence,younger age and severeness.According to a report by the World Health Organization(WHO),600 million people in China are nearsighted,and the rate of myopia among teenagers is the highest in the world.It can be seen that the primary school stage is the key age stage for the prevention and control of myopia among adolescents in China.Therefore,guided by the problem of myopia,this paper conducts an emperimental study on the influence of sand board table tennis on the naked far vision of level-1 students.The purpose is to explore whether it can have a certain influence on the naked far vision of Level-1 students through intervention experiments of a certain intensity and a certain period of time through the use of netting antagonism sports.At the same time,it is analyzed whether the intervention method of sand board table tennis training can make different effects on the visual acuity of students of different grades and genders through experimental research.Through the comparative analysis of this experiment,we hope to explore how to improve the visual health of children and adolescents through sports activities,reduce and improve the problem of myopia of adolescents,and provide intervention methods and practical methods for the prevention and control of low vision of children and adolescents through sports activities.Research methods: 1.Literature method: to study the literature related to sand board table tennis and naked eye far-vision.2.Experimental method: This paper takes the effect of sand board table tennis on the naked eye distant vision of level 1 students as the research object,and selects healthy Level 1 students without genetic history from four parallel classes of Zijinshan Primary School in Nanjing as the experimental subjects,including one experimental class and one control class of grade 1 and Grade 2 respectively.The interven tion lasted for 6 months with 40 minutes of training four times a week.The experimental class was trained with sand-board table tennis for 20 weeks,and the control class was taught normal PHYSICAL education.The visual acuity test was conducted respectively before,during and after the experiment.The independent variable was intervention of sand-board table tennis,and the dependent variable was naked far visual acuity.Through the sand board table tennis practice after adding numbers and patterns to the sphere,the index is affected by intervention,so as to carry on the effect analysis.3.Mathematical statistical method,using Execl and SPSS26.0 for data analysis and processing,to analyze and compare the data before and after the experiment within and between groups.Results: 1.Prior to the experiment,there was no significant difference in uncorrected remote visual acuity between the experimental and control groups.(P > 0.05);2.After the experiment,naked visual acuity of the left and right eyes of the experimental group was significantly higher than that of the control group,and there was a significant difference.(P < 0.05),and the increase of naked far visual acuity of the second grade students was more significant;3.Compared with before the experiment,the naked far visual acuity of the experimental class of grade two was significantly improved and the difference was very significant(P < 0.01),while the naked far visual acuity of the experimental class of grade one was significantly improved and the difference was significant(P < 0.05);4.Both male and female students in the experimental class showed significant improvement in their left and right naked far visual acuity,and there was significant difference in male students’ naked far visual acuity(P < 0.05).Conclusion: 1.Through the 20-week intervention of sand-board table tennis experiment,the naked far visual acuity of the left and right eyes of the students in the level 1 experimental group can be significantly improved.And the naked far visual acuity of some students gradually returned to the normal level,indicating that sand-board table tennis can delay and improve the naked far visual acuity of the level 1 students;2.At the grade level,the improvement effect of naked far visual acuity of the experimental class of Grade 2 was better than that of Grade 1;At the gender level,sand board table tennis can have different effects on students of different genders.And it happens that the naked eye far vision of boys is better than that of girls;4.In the comparison of left and right naked far visual acuity,the increase of left naked far visual acuity is higher than that of right naked far visual acuity.