| ObjectivesBy providing standardized teaching of adolescent spinal and visual health exercises and health education on posture management for primary school students,the effect of the spinal health program(combined posture management of adolescent spinal and visual health exercises)on delaying the progression of mild to moderate myopia in children was observed.MethodsBefore the start of the trial in May 2021,215 children in grades 3 and 4 of a primary school in Rizhao City were measured for axial length(AL),myopia equivalent spherical acuity(SE),and uncorrected distance vision(UDVA).According to the inclusion and exclusion criteria,100 children were included as the subjects of the study.Simple random sampling was divided into a test group and a control group with 50 persons in each group.The control group received monthly health education on posture management before and during the experiment,and was required to maintain correct posture according to posture management requirements throughout the entire experiment period;The experimental group adopted a spinal health program,and based on the control group,two exercises on adolescent spinal and visual health exercises were conducted during school hours(5 days)and afternoon break time every week.The study lasted for 32 weeks and was performed pre-,mid-,and post-test on selected visual acuity measures before,18 weeks of intervention(including 8 weeks of summer vacation in the middle),and 32 weeks of intervention.Using the generalized estimation equation and Friedman test to analyze the data of the two groups before,during,and after the intervention,to observe and compare the effect and difference of spinal health plan and posture management alone in delaying the progression of mild and moderate myopia in children.Results(1)AL was significantly correlated with SE(r=-0.494,P<0.001)and UDVA(r=-0.434,P<0.001).AL can explain 25.1%of the total variance of SE(R~2=0.253,F=188.020,P<0.001)and 15.4%of the total variance of UDVA(R~2=0.155,F=102.115,P<0.001).(2)Compared with the experimental group,the AL in the control group increased by 0.091mm and the SE was 0.008D faster than that in the experimental group.UDVA in the post-test group was 0.126 higher than that in the control group(P<0.05).(3)Compared with the pre-test,the progress of AL and SE in the two groups during the mid-test was effectively controlled.The intragroup comparison showed a certain increase in AL between the two groups(P<0.05);Both SE and UDVA in the test group were effectively controlled;In the control group,there was progress in SE(P<0.05),but no significant progress in UDVA.(4)Compared with the mid-test,the AL increased by 0.170mm(P<0.05)and SE progressed by 0.180D(P<0.001)in the two groups during the post-test.The intragroup comparison showed an increase in AL between the two groups(P<0.05);There was no significant progress in SE and UDVA in the experimental group;In the control group,SE progressed(P<0.05)and UDVA decreased by 0.128(P<0.001).(5)Compared with the pre-test,the AL of the two groups increased by 0.230 mm(P<0.05)and the SE progressed by 0.240 D(P<0.001)during the post-test.The intragroup comparison showed that both groups had an increase in AL,progress in SE,and a decrease in UDVA(P<0.05).ConclusionFor children with mild and moderate myopia,spine health programs can delay the progress of SE and UDVA to a certain extent,and the effect of controlling the progress of UDVA is better than posture management. |
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