After Tae Kwon Do Cross Kick The Kinematics Analysis Method

In tae kwon do movement technology theory system constantly improve today,with the induction of gear available with the requirement of increasing the for athletes in the competition,transverse kicking action with its rapid,simple and less energy consumption is the characteristics of easy to use,belong to the basic technology in the beginners,belongs to the key to winning,in the high level athletes in the game is the most common is the main means of scoring,kicked him making more frequently appear in the game,as in the competition kicks by the largest number of transverse kicking,cross kick technique has become the popular technology of athletes and coaches are concerned.In this paper,by using VICON Sweden production infrared three-dimensional motion analysis system(eight)high-speed photography and 3 d image analysis system for north university sports college special taekwondo athletes horizontal kinematics analysis was carried out on playing technique,thus it is concluded that horizontal kicking leg kick technology and the main body joints(large displacement amplitude and obvious)link point of the relevant data such as speed,time,and track changes on the kinematics characteristics of the technique analysis.Each link points including the left and right shoulder joint,kicking leg knee joint,kicking leg toe,finally,the factors influencing the horizontal kick velocity of kinematics analysis.Calculated the kinematics principle of transverse kick technique,provide the basis for later taekwondo sports scientific training,as well as taekwondo athletes on the field to contribute to get more scores.Research shows that:1?Tae kwon do cross kick strike can be divided into(1)from the time in the process of preparation phase: gravity drop rises,the trunk;(2): toe and knee aiming from the ground,buckle knees struck.Kicked around each stage takes preparation phase respectively: 0.30 seconds left,right,0.41 seconds to stage: 0.33 seconds left,right,0.26 seconds.Preparation phase takes up kicked him half the time distribution,visible kicked in front of the kick of forecast is very important in the process of start.2?After passing test,analysis of the data,contrast found around shoulder joint in speed,in the start is not conducted by the torso torsional and uniform motion,but stage with the same action around shoulder joint speed are not the same.Knee joint maximum speed is greater than shoulder joint,but small compared with the toe maximum speed,as the middle part of the test its maximum velocity at the middle stage,also combined with time,start the sooner,the smaller the maximum speed,toe as horizontal kicking action at the end of its speed is the highest.3? to 6 players in trajectory analysis phase mainly shoulder trajectory has carried on the detailed comparative study when the transverse kicking action around the shoulder joint is almost similar to X,Y,Z curve,before kicking leg hit the target,around shoulder joint are the whereabouts of a u-shaped rising process,during the process of the trunk are greatly reverse,when the trunk to the Y axis parallel time analysis for the transverse kicking action hit the target when the total long half 0.29 seconds to 0.29 seconds,the apparent position changes with time,can be used as whether the other party will cross to play as a combination of action or the first stroke of single action technology USES important references.