Research On The Status Quo And Countermeasures Of College Students’ Physique Under The Background Of Healthy China

In the Outline of the Healthy China 2030 Plan,it is clearly stated that good health is an inevitable condition for the all-round development of the Chinese people,a basic requirement for life in the socialist market economy,a major symbol of the prosperity of the Chinese nation and the prosperity of the motherland,and a common aspiration of all the people.The outline calls on governments at all levels to vigorously carry out the national fitness program,focusing on people’s physical health and comprehensively improving people’s physical fitness.Under the guidance of the program,people pay more and more attention to their own physical health year by year.The comprehensive development of body form,body function and body quality is an important indicator of a person’s health,as well as the external expression of the body structure.In recent years,the development of youth sports is the focus of the state and universities.With the implementation of the "double reduction policy",the development of student sports has been pushed to a new height.Parents are also inclined to pay attention to sports and pay attention to the development of sports,instead of "valuing intelligence over body".The change of this thought also promoted the development of college sports.Since the outbreak of the novel coronavirus at the end of 2019,the country has taken rapid and effective management measures to protect the personal safety of its citizens,and universities have also implemented "closed management",which,to some extent,is bound to affect the healthy development of students’ physical health.Based on the physical fitness test items of Jilin Agricultural University students from 2019 to 2021,the following eight indexes are obtained: height,weight,vital capacity,sitting forward bend,standing long jump,50 m running,male 1000m/female 800 m,male pull-up/female sit-up.Based on the eight basic indexes,the following are derived: Body mass index(BMI),Laurel index,Ketole index,vital capacity/body weight,vital capacity/height and other five indicators,a total of 13 indicators as the research basis,to understand the distribution and development trend of physical health status of students in Jilin Agricultural University.In order to further realize the "Healthy China 2030" in the outline of the program to achieve the fitness test of 25% or more of the good rate.The objects of this study are all the students of Jilin Agricultural University who participated in physical fitness test from 2019 to 2021,a total of 44,763 students,including 19,659 male students and 25104 female students,whose average age is 18-22 years old.The results show that:(1)In terms of body shape: the height and weight of male and female students in Jilin Agricultural University showed an increasing trend year by year,and the single sample t test showed that the height and weight of students were highly significant(P< 0.01).In terms of physical function,the vital capacity of male and female students in Jilin Agricultural University showed a trend of decline,and the vital capacity of male and female students was highly significant(P < 0.01).In terms of physical fitness: speed fitness,flexibility fitness and strength fitness of male and female students in Jilin Agricultural University all showed an increasing trend year by year,while only endurance fitness and male pull-up/female sit-up showed a decreasing trend.(2)Analysis of nutritional status from 2019 to 2021 in Jilin Agricultural University: The majority of male and female students had normal body weight.The proportion of underweight girls increased,and the proportion of mild obesity boys increased year by year.By comparing the indicators of normal weight,underweight,mild obesity and obesity,it can be concluded that the underweight students are mostly "bean sprouts".Compared with the indicators of mild obesity and obesity,it was found that there were significant differences in all indicators,but the difference range was small,only the body weight index had a significant difference range.(3)Through second-order cluster analysis,the physical types of students in Jilin Agricultural University were classified as "robust type" and "mildly obese type".Girls I to IV are: "perfect type","robust type","full type","mildly obese type".In 2020,male students in category I are "mildly obese" and category II are "robust".Girls I and II are "perfect" and "mildly obese" respectively.In 2021,male students in class I were "mildly obese",Class II was "full" and class III was "robust".For girls,category I is "mildly obese" and Category II is "robust".(4)Through the analysis of physique factors of male and female students in Jilin Agricultural University,it is concluded that the principal component factors of male and female students in Jilin Agricultural University are composed of four factors,which are: nutritional form function factor,oxygen uptake function factor,physical fitness function factor and growth and development function factor.According to the total variance interpretation table,the contribution rates of four factors for male students can be calculated as: nutrient form function factor K1=0.469117476,oxygen intake function factor K2=0.254172529,physical fitness function factor K3=0.160976365,growth and development function factor K4=0.115733629.The female factor contribution rate was K1=0.437365688,K2=0.272681162,K3=0.163790226,K4=0.1261629226.According to the component score coefficient matrix,the comprehensive scores of students’ physical health in Jilin Agricultural University from 2019 to 2021 are as follows: male students in 2019,2020,2021,and female students in the order of 2020,2019,2021.