| In recent decades,the pace of life has accelerated,people’s lifestyles have changed,and physical health has become a concern of the whole people,especially the physical health of adolescents.How to improve the physical health of adolescents has always been a hot topic in global research.According to the survey report on the physical health of adolescents in my country,the passing rate of adolescents’physical fitness test scores is decreasing year by year,and the main factors leading to the decline in the physical health of adolescents are insufficient daily physical activity,unreasonable dietary structure and excessive energy intake.School physical education can increase the daily physical activity of adolescents and improve the physical health of adolescents.Through consulting a large number of literatures,this article finds that physical training,sports skills and sports game training can all improve the physical health of adolescents.Therefore,this research combines the three modules of physical training,sports skills and sports games into a new modular exercise,and tries to use it in physical education classrooms to explore the impact of modular sports in physical education on the physical health of young people.Research method:In the fifth grade of the seventh elementary school in Guanggu District,Wuhan,3 classes were randomly selected with a total of 120 students,including 40students in the experiment 1 group(20 boys and 20 girls)and 40 students in the experiment 2(22 boys and 18 girls),a total of 40 people in the control group(21 boys,19 girls).According to the experimental plan,the experiment 1 group was intervened with 3 classes of modular sports per week;the experimental group 2 was intervened with 2 modular exercises per week and 1 normal physical education;the control group and the experimental group were treated at the same time for 12 weeks Normal physical education.After 12 weeks of intervention,it is necessary to complete a questionnaire survey of classroom satisfaction,and measure the exercise intensity and energy consumption of the physical education class with a three-axis accelerometer in the first 1,6,and 12 weeks.The results are analyzed by SPSS software.Research results:1.In terms of exercise intensity and energy consumption:during the intervention period,the average physical activity(kcal)and MET values per class of the experimental group 1 and the experimental group 2 were higher than those of the control group(P<0.05).The physical activity of the experimental group 1,the experimental group 2and the control group were 85.34kcal,75.56kcal,59.89kcal,respectively;the MET values of the three groups were 4.82,4.65,and 3.42,respectively.2.Classroom satisfaction survey shows that after the intervention,the classroom satisfaction of experiment group 1 and experiment group 2 is higher than that of the control group,32.5%,30.0%,and 20.0%are very satisfied,and 45.0%are relatively satisfied.,42.5%,27.5%.3.In terms of body shape:(1)Height:After 12 weeks of intervention,the height of the experimental group 1,the experimental group 2 and the control group increased significantly(P<0.01),and the increase rates were 1.66cm,0.77cm,0.71cm,respectively;Comparing the height increase of the three groups,it is found that the experiment 1 group is significantly higher than the control group(P<0.05),while the experiment 1 group and the experiment 2group are not significantly different(P=0.273),and the experiment 2 and the control group are not significant Difference(P=0.281).(2)Body weight:After 12 weeks of intervention,the body weight of experimental group 1 and experimental group 2 were significantly reduced(P<0.05),and the reduction ranges were 0.47kg and 0.18kg,respectively.There was no significant change in the control group(P=0.245);The weight loss of the three groups was found that the experiment 1 group was significantly higher than the experiment 2 group(P<0.05),and it was also significantly higher than the control group(P<0.01),while there was no significant difference between the experiment 2 group and the control group(P=0.281).(3)BMI:After 12 weeks of intervention,the BMI of experimental group 1 and experimental group 2 were significantly reduced(P<0.05),the reduction range was 0.34 kg/m~2,0.23 kg/m~2,and the control group had no significant change(P=0.545);Comparing the BMI reduction of the three groups,it was found that the experiment 1 group was significantly higher than the experiment 2 group(P<0.05),and it was also significantly higher than the control group(P<0.01),and the experiment 2 group was also significantly higher than the control group(P<0.05).4.In terms of cardiopulmonary function:(1)Vital capacity:After 12 weeks of intervention,the vital capacity of experimental group 1,experimental group 2 and control group were significantly increased(P<0.01),and the increase rates were 172.00ml,200.30ml,74.45ml,respectively;Comparing the increase in vital capacity of the three groups found that the experimental group 1 and the experimental group 2 were significantly higher than the control group(P<0.01),and there was no significant difference between the two groups(P=0.319).5.In terms of physical fitness:(1)50m×8:After 12 weeks of intervention,the 50m×8scores of experimental group 1,experimental group 2 and control group(P<0.01)all improved by 5.20s(P<0.01),4.32 s(P<0.01),1.16s(P<0.05);comparing the three groups’performance gains,it was found that the experimental group 1 and the experimental group 2were significantly higher than the control group(P<0.01),and there was no significant difference between the two groups(P=0.289).(2)Rope skipping:After 12 weeks of intervention,the rope skipping performances of experimental group 1,experimental group 2and control group were all significantly improved(P<0.01),and the increase rates were 7.67,9.28,and 12.63 respectively;compare the three groups’performance gains It was found that the experimental group 1 and the experimental group 2 were significantly higher than the control group(P<0.01),and there was no significant difference between the two groups(P=0.368).(3)Others:After 12 weeks of intervention,there was no significant improvement in the 50m performance,sitting forward bending performance,and sit-up performance of experimental group 1,experimental group 2 and control group.Research conclusions:1.The modular sports class in this study can improve the level of physical activity and class satisfaction of teenagers more effectively than the conventional physical class.2.In this study,three modular exercise interventions per week are more effective than two modular exercise interventions in promoting the physical health of adolescents.Modular exercise and physical education classes 3 times a week have a significant impact on the physical shape,cardiopulmonary function and physical fitness of young people.It has a very significant improvement on the strength of lower limbs,endurance and physical coordination.It has a significant impact on speed,waist and abdomen strength.No obvious improvement in body flexibility. |
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