| The dynamic analysis of students' constitutions is an important part in analyzing the factors that may cause the changes of students' constitutions.These factors include society,economy,culture,education,nutrition,sickness and sports.It is also an objective indicator to judge the development of the society and the economy in Jiang Xi province.Based on the data of the survey of students' constitutions in 2005,2010 and 2015,this research does a dynamic analysis Constitution on students of the Han nationality from the age of 13 to 22.Purpose of the research: Get the information of the changes and the trend of the development of the 13-year-old to 22-year-old students' physique,functions of the body,and states of health in 2015 in Jiang Xi province.Suggestions based on the analysis will be given to improve the students' states of health in Jiang Xi province.Method of the research: Do tests and investigations of index of constitutions on5300 students from the age of 13 to 22 in 2015 in Jiang Xi province.The way to do the tests is based on the Implementing Plans of Investigations of National Students' Constitutions and Health.The results are compared to different indexes of Report of Investigations of National Students' Constitutions and Health in 2005 and 2010.Results of the research: Firstly,the students of the Han nationality from the age of 13 to 22 in rural and urban areas in Jiang Xi province show an increasing trend in height and weight during the 10 years from 2005 to 2015.The increasing trend of weight is more obvious among students from urban areas.During the 5 years from2010 to 2015,the increasing trend of height is not obvious among the urban students from the age of 13 to 22,but the increasing trend of weight is obvious among them,especially for the students whose age are over 19,and the index of BMI is increasing year by year.Secondly,by comparing the data of the year of 2015 to 2005 and 2010,the result shows that the increasing trend of vital capacity is obvious among the students of the Han nationality from the age of 13 to 18 in Jiang Xi province.The increasing trend is slowed down among the students from the age of 19 to 22.Thirdly,during the 10 years from 2005 to 2015,the states of health and the abilities of doing sports are developed in an imbalanced and decreasing way among rural and urban students from the age of 13 to 22 in Jiang Xi province.During the 5 years from 2010 to 2015,the states of health and the abilities of doing sports among these students still show a decreasing trend.The decreasing trend of explosive power,strength and endurance is especially obvious.Conclusions: 1)In terms of physique: from 2005 to 2015,the indexes of the physiques of the students of the Han nationality from the age of 13 to 22 increase to different degrees.There is an increasing trend in the index of height and weight.Both the height and the weight of urban students are higher than that of rural students.The differences between urban and rural students are obvious.The BMI index is increasing year by year,and the probability of overweight is also increasing.2)Interms of functions of bodies: the vital capacity of the students of the Han nationality from the age of 13 to 22 shows an increasing trend in 2015 after the point of inflection in 2010.The vital capacity of urban students' is better than that of rural students'.3)In terms of states of health: during the 10 years,the index of speed shows a decreasing trend,but this trend is restrained and become stable in the last 5 years.The indexes of endurance,strength,explosive power and flexibility show an obvious decreasing trend in the last 10 years,especially in the last 5 years,except for the depression in certain ages.Overall,urban students' states of health are better than rural students' states of health. |
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