Study On The Changes Of 7-18 Years Old Students Physical Constitutions In Dalian City

Adolescent physical improvement and enhancement is the embodiment of comprehensive national strength growing, is an inexhaustible motive force for national prosperity. Youth groups are an important group of national strength inheritance, so their physical health of social concern. In order to understand the adolescent physical development level of city of Dalian, Dalian selecting 2014 7-18 years old students as the research object, monitored by for this group of students’ physique, and the results were analyzed, the conclusion that this group in the surface of the body shape, physical quality and physical function and other basic situation and trend. At the same time, in order to find the physical change trend in time and geographical aspects of Dalian City, 7-18 years old students more clear, intuitive, research were to monitoring results in 2014 and 2010 data and 2014 in Liaoning province were compared and analyzed, the timely detection of problems and put forward opinions, is designed to improve the physical condition of students aged 7-18 Dalian City, and to provide data to support the future development of Dalian City Youth Sports exercise.Taking Dalian City in 2014 7-18 years old students as the research object, using the method, expert interview method, mathematical statistics and other research methods literature. First of all, physical data of 7-18 years old students in 2014 and 2010 respectively and analyzed, Dalian City 7-18 years old students’ physique monitoring data and including Dalian City, Liaoning Province in 2014 7-18 years old students’ physique monitoring data and compared analysis, obtains the Dalian in 2014 7-18 years old students physique change the basic trend, and based on the actual situation of teenagers system of Dalian city development at the present stage, put forward reasonable suggestions.The conclusion of this research:(1) In 2014, Dalian City students are better than rural students body shape, physical quality level in general than rural students, but the city students’ explosive force level in the age of 16-18 gradually decreased and lower than rural students.(2) Compared with the average level of Liaoning Province, the city of Dalian male height, weight and standing long jump level is slightly lower, but the vital capacity index was significantly higher than the average level of the province. Standing long jump index showed uneven phenomenon, the boys of the explosive force level have to be improved.(3) Dalian city girl and the average level of the province is also a certain gap, but compared with the boys were a little better, but in the middle school at the end of stage(16-18 years old) increases obviously, and catch up with and surpass the average level of the province. The overall level of development of Dalian city girls than boys, but should strengthen the physical exercise on morphology.(4) Compared with the 2010 7-18 years old students’ physique Dalian city average level, the overall level of development in 2014, Dalian City students showed a declining trend in 2014, Dalian City students’ height, weight and vital capacity show a clear downward trend.(5) 2014 Dalian City rural students height and weight is overall 2010 level of slightly lower, male, female lung capacity index shows an unstable trend, speed quality is also slightly lower than the average level in 2010. The development of male and female, between the explosive force level is also unbalanced development level is higher than that of boys, girls.(6) In 2014, Dalian City students aged 7-18 in "six disease" cases, myopia and Chlamydia ratio continued to rise, anemia, dental caries, roundworms and malnutrition phenomenon better.Therefore, in order to promote adolescent students of Dalian city health development, we should put forward the following suggestions:In 1, the school aspect, should actively improve and make full use of the existing conditions, suit one’s measures to local conditions, and strive to achieve the diversification and scientific school sports recess.2, the social aspect, provided counselling organization integration in various forms, improve the students’ Extracurricular counseling and extra-curricular exercise combined mechanism.3, the family aspect, it is necessary to change the "succeed, Wang Cheng Feng woman" and "urgent psychological wending Sheng Wu" ideas of education.4, the students themselves, actively strengthen the ideological education, the physical training as to hone the will, confidence in the firm’s performance and promote patriotism and collectivism reflects.