| Childhood is the most important stage of human growth and development,especially children in primary school stage,growth and development have different characteristics.Crawling as the most primitive movement of mankind,is the most basic movement of sports skills,but also from the low stage to the advanced stage must go through the movement,is to keep the body upright and well prepared.Crawling action similar to the body parallel to the ground,the human body's spine,the heart has a very good help.Second grade pupils(7-8 years old)are in the sensitive period of growth and development,but also to improve their physical coordination of the important period.At present,most scholars study to go,run,jump,cast in the upright state to promote the body's physical fitness,but rarely study the impact of crawling on human coordination.Therefore,this article uses the crawling action exercises,the purpose is to improve their physical coordination,for physical education to provide practical experience and theoretical basis.Therefore,this article through the use of literature,Delphi method,test method,experimental method,mathematical statistics and other methods,the theory and practice of combining research.The impact of crawling on the physical coordination of second grade pupils was studied.Through the 26 experts and teachers on the second year of primary school students in the two indicators of physical fitness screening.In order to verify the validity and rationality of the physical coordination index of primary school students,105 students of second grade primary school students were extracted,and 33 physical coordination indexes were measured.First,the difference between the scores of high score and low score was used for physical coordination And then use the system cluster(R type)classification.Finally,combined with the method of expert investigation and measurement,six scientific and rational indicators are selected.The experiment was carried out in Shijiazhuang Yudong Primary School,two classes in the second grade,one for the experimental class 48,one for the control class 50,for 15 weeks(3 times a week,40 minutes each time)teaching experiment The In the course of the experiment,the experimental class is to use the basic part of the course 10 minutes,for crawling practice.The course is based on the school's syllabus and teaching design for the content of physical education,mainly sports games,walking,running,jumping and so on.Test indicators selected the upper limbs of the one-handed shoot and his hands to shoot the ball,the lower limb of the original pad step swing and scissors jump,upper and lower limbs of the hands of asymmetrical slap and feet skipping.Before and after the experiment,the physical coordination index test was carried out,the obtained data were sorted out,and the statistics and analysis were carried out with SPSS20.0.Results: Before the experiment,the experimental class and the control class were compared,there was no significant difference in physical coordination index(P> 0.05).Compared with the control group,there were significant differences between the upper and lower limb coordination indexes(P <0.05),and there was no significant difference between the two groups.There were significant differences in the physical coordination between the two groups(P <0.01),the coordination of the upper limbs and the hands of both hands(P <0.05).There was a significant difference between the two groups(P <0.05).There was a significant difference between the upper and lower limbs in the control group(P <0.05),and there was significant difference between the upper and lower limbs(P < 0.01).Conclusion:(1)crawling exercise can improve the second year of primary school students' physical coordination.(2)crawling can promote the pupils of the upper limbs and lower limbs and body movement coordination,mainly in the upper and lower limbs of the coordination,that is,both hands asymmetry slap and double lower limb scissors jump. |
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