The Study Of Correlation In Middle And Primary School Students’ Physical Condition And Daily Physical Activity In Xi’an City

Xi’an city is one of the faster economy capital in western China, how about middle and primary school students’ physical condition? The level of physical activity is a response to index of physical activity,full physical activity is beneficial to improve the level of body, especially on the heart and lung function, respiratory function, power quality.At the same time, the higher level of physical activity contribute to weight control,can prevent overweight and obesity,and vice versa. Primary and middle school students lacking physical activity has become the important reason for physical effect.It’s worth deeply research and discussion,and find out the relationship between activity and physical fitness,it can provide the theory basis to improve middle school students’ physical fitness level.Study objective:The results of our country’s students’ constitution research show that:Students’ morphological development level has obviously improved, overweight and obesity rate increased exponentially,but the function quality universal decline.The main reason is that:To participate in physical activity level is falling down.So study primary and middle school students’ relationship between physical activity and health can provide the recommendation theoretical basis of physical activity,it has important significance to enhance the whole nation’s health quality.Research method:Pick up aged 9-17 from a total of 300students for physical testing and daily physical activity questionnaire through two schools(The primary school attached to Xi’an Jiao Tong University and the branch campus Xi’an Sixth middle school),we divide four phases of the 9～17year old schoolchildren into early, mid puberty, adolescence and late according to pubertal development scale. Physical fitness index includes:Height, weight, waist, hip, grip strength, vertical jump, sit and reach,20m rhythm running to and fro,to make statistical analysis of daily physical activity.Conclusion:Through statistical analysis it shows that:Prior to puberty and pubertal boys sit and reach’s correlation coefficients of physical activity shows that:0.465 (*P<0.05)、-0.288 (*P<0.05).The level of physical activity in pubertal boys and girls before puberty round-trip run exist weak correlation,and correlation coefficient shows that:0.237(*P<0.05),0.609(*P<0.05).It has statistics significance on physical activity level of pubertal girls’ body weight and body mass index exist significant difference,the correlation coefficients shows that:0.559 (**P<0.01),0.604 (**P<0.01), physical activity levels in late adolescence girls weight related to faint,the correlation coefficients shows that:-0.251 (*P<0.05).The level of physical activity is a response to index of physical activity,full physical activity can improve the level of physical fitness,it has apparent stimulative effect especially on cardiorespiratory function, flexibility, power quality.At the same time, the higher level of physical activity contribute to weight control,can prevent overweight and obesity,and vice versa. Primary and middle school students lack physical activity has become the important reason for physical effect.It’s worth deeply research and discussion,and find out the relationship between activity and physical fitness,it can provide the theory basis to improve middle school students’ physical fitness level.