| Research purposes:In recent years,young people’s vision problems have become a common phenomenon and have gradually become the focus of attention.Long-term sitting at a desk and the widespread use of VDT have led to visual fatigue gradually becoming a problem for adolescents in their daily study and life,and the aggravation of visual fatigue has become the primary cause of myopia.At present,the research on asthenopia is mainly based on epidemiological investigation,and the research content mainly focuses on the influencing factors and morbidity of asthenopia.Whether the improvement and prevention of visual fatigue with physical exercise as a main intervention is effective remains to be further studied.This study intervenes in adolescents with visual fatigue through sports,and explores the relationship between badminton and middle-distance running on adolescents’asthenopia symptoms,eye accommodation function and visual parameters,aiming to provide reference for improving adolescents’ visual fatigue through sports.Research methods:In this study,according to the diagnostic criteria for visual fatigue provided by the"Expert Consensus on Diagnosis and Treatment of Asthenopia(2014)",through the visual fatigue questionnaire and the examination of relevant visual function parameters,the visual fatigue in the first and second years of high school in Qingjiang Middle School,Huaian City,Jiangsu Province,met the experimental requirements.57 students.Using SPSS 25.0 software,the experimental subjects were randomly divided into 20 badminton sports group,18 middle-distance running group and 19 control group.Each group carried out a 14-week special sports practice according to the experimental requirements.The two groups of subjects exercised for 90 minutes each time,including 10 minutes of warm-up,15 minutes of games and stretching exercises,65 minutes of visual fatigue exercise intervention,moderate-intensity continuous training,and exercise 3 times a week.During the intervention period,subjects were given health education on correct eye-use behavior.Use Excel software and SPSS 25.0 to organize,analyze and statistically process the collected data,and compare the data before and after the experiment between groups and within groupsResearch result:1 Visual fatigue score:(1)Dimension AA-dimensional visual fatigue symptom scores decreased in the badminton and middle-distance running training groups before and after intervention(P<0.05).After the intervention,the badminton training group was compared with the control group and the middle-distance running training group was compared with the control group,and the scores of visual fatigue symptoms related to eye health,such as lethargy,dry eyes,and pain,were evaluated.All eyes decreased and there was a statistical difference(P<0.05).(2)B dimensionThe B-dimension visual fatigue symptom score of the badminton training group decreased before and after the intervention,and the difference was statistically significant(P<0.05),while there was no significant difference in the middle-distance running training group(P>0.05).After the intervention,the badminton training group and the control group had statistically significant differences in visual function-related fatigue symptoms such as ghosting,blurred vision,and squinting(P<0.05).(3)C dimensionIn the badminton and middle-distance running training groups before and after the intervention,the C-dimension visual fatigue symptom score decreased,and the difference was statistically significant(P<0.05).After the intervention,there were statistical differences in the visual fatigue symptom scores of dizziness,headache,anxiety and depression and other systemic and psychological factors between the badminton training group and the control group,and between the middle-distance running training group and the control group(P<0.05).2 Eye adjustment parameters:(1)Positive relative adjustmentIn the badminton training group before and after the intervention,the PRA value decreased,the difference was statistically significant(P<0.05),and the PRA value of the middle-distance running training group decreased,but there was no statistical significance(P>0.05).After the intervention,there were statistically significant differences between the badminton training group and the middle-distance running training group,and between the badminton training group and the control group(P<0.05).(2)Negative relative adjustmentAfter the intervention,the NRA values of the three groups were not significantly different from those before the intervention(P>0.05),and there was no statistically significant difference among the three groups(P>0.05).(3)Adjust the sensitivityBAF values in the badminton training group increased before and after the intervention(P<0.05).After the intervention,the BAF values of the badminton training group and the middle-distance running training group and the badminton training group and the control group increased,and the differences were statistically significant(P<0.05).(4)Gather near pointsNPC values decreased in the badminton training group and mid-distance running training before and after the intervention(P<0.05).After the intervention,the NPC value of the badminton training group was lower than that of the middle-distance running training group,badminton training group and control group,and the difference was statistically significant(P<0.05).3 Vision parameters:(1)AcuityThe visual acuity value of the badminton training group increased before and after the intervention(P<0.05),and the visual acuity value of the middle distance running training group increased,but the difference was not statistically significant(P>0.05).After the intervention,visual acuity values of the badminton training group were higher than those of the control group,middle-distance running training groups were higher than those of the control group,and visual acuity values of the badminton training group were higher than those of the control group.The difference between the middle-distance running training groups was statistically significant(P<0.05).(2)ContrastContrast values in the badminton training group increased before and after the intervention(P<0.05),whereas contrast values in the middle-distance running training group increased,but the differences were not statistically significant(P>0.05).After the intervention,the contrast values of the badminton training group and the control group,and the middle distance running training group and the control group all increased,and the difference was statistically significant(P<0.05).(3)VernierVernier values in the badminton and middle-distance running training groups decreased before and after the intervention(P<0.05).After the intervention,the vernier values of the badminton training group and the control group,and the middle-distance running training group and the control group decreased,and the differences were statistically significant(P<0.05).Conclusion:1.Exercise can effectively alleviate the visual fatigue symptoms of adolescents and improve the visual health of adolescents.It has a certain effect in improving the eye symptoms and systemic symptoms of visual fatigue,and the regulating effect of badminton on visual fatigue is better than that of the middle-distance running group and better than that of the control group.2.Persisting in badminton for a long time can improve the positive relative accommodation,accommodation sensitivity,and near-point adjustment function level of visually fatigued teenagers,and increase the eyeball accommodation reserve,but has no significant effect on the negative relative accommodation function.3.Exercising for a long time can improve the body’s metabolism.Badminton’s eye conditioning promotes the increase in blood flow,improves ocular muscle conditioning and eye metabolism,improves visual acuity,and relieves visual fatigue.It can prevent and control the occurrence and onset of myopia to some extent,improve the visual health of adolescents,and is worth promoting in primary and secondary school sports. |
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