Discussion On The Teaching Methods Of Back Jumping High Jump Technique

In this paper,the method of literature review,video analysis,field investigation,experiment and logic analysis are adopted to deconstruct and re-understand the technique of backswing by analyzing the analogy between Fosbury flop and Round-off,back handspring.The conclusions are as follows:1.The key to the arc run-up is that the body is conscious and purposeful in the arc approach compared with the straight approach.There is no essential booster acceleration in the arc approach,and the speed of the arc is related to each other.In technology teaching,the priority of teaching emphasis is to tilt > curve > speed2.The curvature change of run-up arc is highly related to the change of shoulder axis.Therefore,the teaching method of run-up arc should be based on the connection between the two.3.The approach route of back style technique is "straight line arc straight line".Therefore,in order to create a larger moment of inertia and form a more favorable turning trend,we need to emphasize the starting and jumping points in the teaching of arc run-up.4.In the process of taking off,the continuous high knee state is contrary to the principle of low center of gravity.For the technical teaching of take-off link,it is necessary to strengthen the natural release of hip flexor muscle group of swinging leg after take-off.5.In the teaching of the take-off link of the back style technique,it is necessary to emphasize the active force of each link of the upper body of the non fixed end,form the speed difference between the upper limb and the lower limb,and drive the movement of the lower limb in the way of energy reverse transmission.6.When passing the bar,under the condition of tension of hip flexors,the two-way strong movement of the head and legs will cause too much burden on the spine and easily damage the lumbar spine.In the teaching of passing pole technology,one-way active force should be used.7.The passing link of the back style technique is formed by the gradual transmission of the vertex trend among various parts of the body under the guidance of the front part arm and the head.Therefore,in the teaching process of "back bow" technique,the order of body movement should be emphasized.