Effect Of Load Sport Increased Track And Field Training Teams Of Students To Different Cardiovascular Endurance And Energy Metabolism

By studying the expenditure of body energy and metabolism of substrate under progressively increasing motion load forfield-track training team players, this thesis aims to explore how part of psychological and gaseous metabolism indexes, amount of fat oxidation, percentage of energy supply relate with gross energy expenditure with time going and further more clarifythe features and rules of energy supply in motion process, onwhich basis,more scientific and practical training can be organized.The experiment is operated on39male students of field-track training teams and normal schools (except P.E. school) in Shanxi Normal University. The tested students are tested on metabolism of gas under progressively increasing motion load and analyze the change of heart-lungs tolerance and energy metabolism.following results are conducted:1.In the state of stillness,th ere is no clear difference on the weight, systolic pressure anddiostolic pressure among different kinds of test students. However,contrasted to ordinary students,field-track training team players have lower level of BMI, WHR and HR but higher level of VC.2.VO2max increases in different periods of different field-track teams.On the whole, the O2P of periodⅢ is better than the previous two periods among different field-track teams.Because of stimulation of motion load, as for short running players, Whenthe load up to175W, the VO2/kg and MET of periodⅡand periodⅢ differs greatly than those of periodⅠ(P<0.05); When the load is75W,125W and150W, the R of periodⅠand periodⅢ differs a lot. As for medium-long running players, the VE of periodⅢand periodⅠ differs much at25W and125W, When the load is100W, the R of periodⅠand periodⅡ differs a lot(P<0.05). As for jumping players, When the load is175W, the VO2of periodⅡandperiodⅢ increases sharply, The R of periodⅡand periodⅢ declined after175W and150W.3.Under rationing load, the RF of medium-long running players changes slightly and their VT tops over the other teams after100W. The VE tops over the other teams after50W. The VO2and O2P of short running players tops over the other teams. With the load increasing, the R of both short running players and medium-long running players have a stab le increasing, while the R of jumping players declines after150W. The R of ordinary students largely from that of the field-track training team players in that it declines after175W and the exhaustion of MET is higher than field-track training team players.4.The sprint team energy metabolism indexes (VE, R, RF ando2p) and exercise duration, HRmax, VO2max has certain correlation, middle distance race team of energy metabolism and VO2max, the termination of HR, WHR, VC has certain correlation, and the impact of jumping team energy metabolism indexes (VT,VO2, R, met) VO2max, termination of DBP.Conclusion:1.In the condition of stillness, there is great difference on body shape and body function between field-trainingplayers and ordinary students.2.By analysis of different periodsof the experiment, the VO2max of different team players increases during every period. During the test of motion load, the heart-lungs tolerance and energy metabolism are both better than that of previous periods for every tested teams.3.Under rationingmotion load, it is easier for medium-long running players to beadapted to motion load but more difficult to react to the load.In this way, it is good for them to save energy. Short runningplayers do worse than medium-long running players and jumpingplayers do worst. Rationing motion load affects ordinary stude nts most.4.Influence of different track and field training team inenergy metabolism as a moving load test of physical functiontests to better attention subjects in exercise stress test indexes of energy metabolism changes, to avoid unnecessary risks.