The Effect Of Different Levels Of Physical Activity On The Attention Of Middle School Students

Teenagers are the future of the motherland and the hope of the nation.The physical health of teenagers not only affects the individual's happy life,but also relates to the future of the nation and national rejuvenation.At present,less than two years are left before the goal of building China into a powerful country in human resources by 2020.There are a lot of problems to be solved in school sports work and students'physical health.Through the investigation and analysis of this study,the current physical activity situation of middle school students in Shixia,Shenzhen is accurately mastered,which provides reference for the development and formulation of school physical education curriculum.Through the data analysis of the relationship between physical activity level,..and attention,on the basis of explicit attention can promote cognitive development,it provides scientific and clear theoretical basis for supporting schools to carry out sports programs and encouraging students to participate in physical exercise.Based on Shixia middle school in Shenzhen city,this study adopted the method of random sampling to select a total of 90 students from the seventh grade as the experimental subjects.On the basis of each student wearing the accelerometer,the...physical activity level was tested for 7 consecutive days,and the attention level of the experimental subjects was tested during the test.According to the U.S.department of health and human services(HHS)released the 2018 physical activity guide,according to the Moderate physical activity a week time,the research object is divided into the High level of physical activity group(High physical acti've group,group H)group,level of physical activity,Moderate physical active group,group M)group and the Low level of physical activity(Low physical active group,group L).With the support of Excel,SPSS24.0,GraphPad Prism5 and other data analysis software,the differences of students'attention test results under different levels of physical activity were compared and analyzed.The results showed that among the 90 middle school students who participated in the test,50%were in group L and 20%were in group H.As a whole,the students showed low physical activity.When comparing the results of physical activity levels between men and women,it is found that there is a difference in the proportion of men and women in each level of physical activity.42%of the boys are in group L,which is lower than 58%of the girls.29%of boys are in group H,accounting for 58%more than that of girls.Boys'overall physical activity level is higher than that of girls.In addition,the data measured by the accelerometer were collated and analyzed,and it was found that the daily energy consumption of students in the same physical activity level group was tested,and there was no difference in the daily energy consumption of male and female students,while there was a difference in the energy consumption between different physical activity groups.Overall,the average energy expenditure of the male group was slightly higher than that of the female group.At the same time,the attention test results of students were analyzed.From the perspective of gender,the comparison between male and female attention ability shows that there is no difference between male and female attention level,and gender is not the key factor determining attention level.Grouped according to the physical activity level,analysis under different physical activity level of the students'attention,M and H group students attention level is better than that of group L?M group and group H and L set the correct number of attention allocation and concentration in the target time there were extremely significant differences(P<0.01),and there is no difference between M and H group(P>0.05).Research conclusion:(1)the level of physical activity of middle school students is generally low,while that of boys is slightly better.This study monitored the physical activity of 90 middle school students in Shixia middle school of Shenzhen city.Among the people with high physical activity,the proportion of male students is higher than that of female students.(2)gender has no effect on students1 attention level.After the comparative analysis of attention test indicators of different genders,it is found that there is no difference in attention level between men and women,and gender is not the factor affecting students'attention level.(3)the attention of students with medium and high physical activity level was better than that of students with low physical activity level.Through analysis contrast different physical activity level of the students'attention,physical activity and high physical activity,there is no difference between group and group,high physical activity in the distribution of attention of the right number and concentration in the target time compared with low physical activity group had a significant difference,notes,high physical activity level of the students'attention is superior to low energy level group.Advice:(1)students should improve their health awareness,reduce sitting time,make reasonable use of spare time for physical activities,and develop a good habit of rest and lifestyle.(2)parents should pay more attention to their children's physical and mental health problems,and lead by example,so as to drive their children to participate in physical exercise,enhance their physical quality and enhance their parent-child relationship at the same time;Conditional family encourages the child to participate in sports interest class,develop a sports skill,form the habit that takes exercise all one's life.(3)schools should reduce students'homework burden,plan long-term sports activities,create a sports atmosphere,open school sports facilities,and encourage students to participate in more physical exercise.(4)for researchers in this field,attention should be paid to the selection of experimental subjects when relying on physical activity monitoring to carry out experiments related to the cognitive attention of physical activity to people.Before carrying out the experiment,the physical activity of the population should be monitored.It is suggested to select the group with low physical activity for grouping experiment and compare the differences between groups before and after the experiment.