Kinematics Analysis On The Running Up' Ultimate Phase And Takeoff Action Of The Columbian And Chinese Excellent Male Long Jump Athletes

On the base of reading Columbian track and field magazine articles, gatheringColumbianmale excellent long jump athletes'data and standpoints , and contrastingwith Chinese corresponding parts, we can find these results as follows. The stridelength,velocityandCM height'schangepatternof thelastandsecond-to-laststepspresents same trend in the gross. At the same time, some immoderate onesof Chineseathletesexists. Forexample,numericalvalueofrunningupvelocity is small, CM height'schange patternclose to Lewis when it is contrasted with Powell and Lewis. When itis contrasted with U.S. excellent athletes, CM height'value of last stride is small.Takeoff parameter's value of Chinese excellent male athletes is marked differentwith America excellent long jump athletes. The value of touchdown and takeoffangleissmall,andsectorangleoftakeoffactionislarge.I consider that the Chinese athletes'training emphases should be focused onhow to enhance the counteract abilities of takeoff leg and hip; At the running phaseemphasesisthathowtoimprovingthevalueof runn-up velocity.