The Intervention Study On Running And Jump For The Growth And Development Of Children Aged From 10～11 Years Old

ObjectAdolescence is important course when children grow up and develop quickly.To formulate reasonable exercise prescriptions for normal children in adolescence,we used exercise training and health propaganda as main methods,observed the effects of exercise training on normal children in adolescence,the effects concluding weight, height and bone age and some other growth indexes.MethodsWe had chosed 110 adolescents whose age between 10 to 11 on four grade of Zhonghua Road elementary school in Shijiazhuang city of Hebei province,and according to their own class randomly divided them into experimental class and control class.Basis on the age(composition age,bone age,the examine results of development of secondary sexual character),we chose the type of exercises,further more we readjusted the plan of exercises on the basis of the research outcomes of prophase experiment.Through the Teaching of physical education class,we practiced the exercises intervention on the experimental class.There were four physical classes each week for the experimental class,on Monday,Tuesday,Thursday and Friday each week.And control class had two physical classes each week according to normal teaching arranges.The contents of physical classes of experimental class were special,as the contents of physical classes of control class were normal.The contents of class in experimental class readjusted once a month(movement time,announcements) and more adjusted each three months(exercise intensity and frequency),changed each six months.To look up and adjust exercise plan of each one,we established files for all the children after experimental tests.Results1 The effect of exercises intervention on elevating height and growth was fine,exercises intervention could significantly improve height,sitting height development of the 10～11year～old male and female children,and bone age was affected by exercises intervention.At the same time,exercises intervention could also elevate the chest circumference and vital capacity of children of different sexual in the age.2 Although there was no significantly difference in body weight between different genders of the children,the Influencing factors of body weight were complex,so we could not discuss the specific Varity clearly for index restriction.We may infer that weight was not affected by exercises intervention,but exercises may affect the proportion of body weight and have the beneficial effect on body.3 There were no significantly differences in height,sitting height,vital capacity and weight between different genders of 10～11 year-old children.4 There were significantly differences in chest circumference and bone age between different genders of 10～11 year-old children.