Kinematics Analysis And Optimization Based On The Sea-wrapped Whip Stroke "Dial Light In The Cloud"

Research purposes:Through the analysis and optimization of the moves targeted by the Institute,we can find and approximate the optimal combination between the body and the power relationship during the exercise,and propose an optimization plan for the move �cloud light� to match the body and the power.To achieve the best results,reveal the essence of traditional martial arts strength and its internal relationship with the body,and provide reference for the scientific teaching and training of whiplash.Research methods: This study is aimed at the typical movement in the sea whip,"cloud in the light",through the three-dimensional video shooting,using Dartfish4.5.2.0 motion analysis software,the relationship between the various parts of the movement angle,running route and time allocation Objective research,propose an optimization scheme,so that it is closer to the "golden division point" between the various parts of the movement,so that the fit of the body and the strength can achieve the best effect.Conclusion:(1)In the action of martial arts "Yunli Bodeng",the whole running route of the short stick can take a derivative,but in the third-fourth phase-changing action,the break point is most likely to occur and the energy is lost;(2)Many years Chanhai short stick training athletes have achieved automatic action,but there is still some room for optimization of the action details,which can be used as a breakthrough to obtain further improvement;(3)There is a positive correlation between the level of power transmission efficiency and the rationality of bodily movement.More reasonable of the bodily movement and more smooth of the action,the transmission of the force is more smooth,and closer to the "golden division point" of its movement;on the contrary,the power transmission is stagnant,and it cannot be stable;(4)When the stick is pressed,the test standard of �Lida Gunshao� is that when the stick runs to the final position,the momentum in the direction of the stick tipreaches the maximum,and the velocity vector in other directions is zero or close to zero,and the energy generated by the human maximize the kinetic energy of the stick tip;(5)Compared with before optimization,the total time of "Yunli Bodeng" movement and the time of stick-pointing had significant difference(P < 0.01),which reflects that the speed of energy conversion and the initial velocity of the stick point increased;the total angle of the short stick was significantly different when the stick was pressed(P<0.05),and the angle between the arm and the short stick,the short stick and the horizontal plane were significantly different(P<0.01),indicating that the combination of the power and the bodily movement is closer to its own "golden division point",and the optimization is successful.Recommendation: Use scientific training methods to eliminate unreasonable movements.Practice often the short stick "Thirteen Method" of the hands-free motion of �Wuzhong Shengyou� and the slider motion of "Mao Xilian" to enhance the control of the short stick.Strengthen the strength exercises in the waist and leg parts and the flexible exercises of each joint to reduce the breakpoint in the transmission of the power caused by the uncoordinated body.