| Objective:In order to realize the performance objective requested by the party central committee that to improve the physical health of teenagers evidently in five years,the ministry of education,the general administration of physical culture and sports of China and the central committee of the communist youth league jointly launched the"sunshine sports winter long-distance running activities for hundreds of millions of students nationwide"in 2007.However,when students are vigorously run"sunshine running",the physical health level of high school students has not been significantly improved.The main reason is that the millions of high school students do not know how much their appropriate work（running speed）is,only practice with their own rhythm type of long- distance running.In order to change this current situation,through the"sunshine long-distance running"to help the students achieve the fitness goal in twice the results with half the effort,to make the good original wish to improve students’physical health of "sunshine long-distance running"can be carried out effectively and in long term,This study established the standard intensity of high school students’"sunshine running"through experimental research,including:（1）to establish the heart rate range of suitable intensity running speed（anaerobic threshold running speed）of high school students’"sunshine running".（2）establish the heart rate regression equation of the individual suitable intensity running speed （anaerobic threshold running speed）of high school students in"sunshine long-distance running",so that each student can obtain the heart rate of the individual suitable intensity and control the running speed with the appropriate heart rate.Methods:experimental method is adopted,340 high school students as subjects（for various reasons had 24 out of 316 effective samples）,among them,the first phase of the experiment of 277（male 136,female 141）,on the basic information of each experiment object anaerobic threshold,body composition,basic heart rate,heart rate,a naerobic threshold velocity,vo2max such as data collection and input,using mathematical statistics processing,aims to establish a VT-heart rate individual regression equation;In the second stage of the experiment,40 subjects were selected for back substitution test（one of them was excluded due to errors in data,so the effective samples were 39,including 20 males and 19 females）.Results:（1）the equation of anaerobic threshold heart rate of male high school students is Y=111.537+6.076*x1-0.2821*x2-0.569*x3+9.944*x4（where,x1 is age,x2 is height,x3 is basal heart rate,x4 is body surface area）,and the equation of anaerobic threshold heart rate of female high school students is Y=125.062+7.132*x1-0.268*x2-0.817*x3-0.463*x4+9.385*x5（x1 is age,x2 is height,x3 is basal heart rate,x4 is body fat rate.X5 is the body surface area）;（2）the average anaerobic threshold heart rate of male in grade one,grade two and grade three were 132.3±3.7 times/min,respectively.139.1±5.6 be ats/min;153.2±8.5 beats/min;the average anaerobic threshold heart rate of female in grade one,grade two and grade three were 135.4±6.0 beats;138.9±5.3 beats;151.94±8.2 beats.Conclusion:the anaerobic threshold heart rate regression equation established in this study considers the maneuverability and scientifica lness of index selection,and there is no significant difference between the predicted values and the actual experimental results in the regression test,and the correlation between them is consistent.It is proved that the regression equation is scientific and practical,so it is worth popularizing and applying. |
PDF Full Text Request