Soccer Throw-in Technical Characteristics Of Biomechanical Movement

Football throw technology as a means to restore the match is also the beginning of an attack, especially in the opponents goal line near the foul ball, will form a very good offensive opportunities, and thus will result in a very good shot opportunities. In soccer, throw high accuracy, the ball fast, constitute a threat to a large extent, from the far foul ball will improve the variability of the foul ball attack on the opposing team. This paper attempts combination of surface electromyography and high-speed camera technology, the system of research and discussion on the subjects throw technology to improve the technology and quality of the throwing distance throw for more effective training for this action to provide the appropriate reference basis and improve the theoretical foundation.Objective:football players throw throw action by EMG telemetry and high-speed photography to analyze from a different side to reveal the characteristics and laws of the throwing distance throw, provide a quantitative reference for teaching, training, researchStudy:six male athletes of the Beijing Sports School football team as subjects.Research methods:EMG telemetry acquisition athletes hard muscles EMG production Motion infrared light point camera system for three-dimensional data of the athletes main movement joints signs point the athlete throw through the calculation of three-dimensional data kinematics of the joint angle, angular velocity index, the football player throwing the biomechanical characteristics of the foul ball action.Major findings:1Through the muscle electric timing sex feature analysis: leading the arm stage, muscle/mobilization order "elbow-shoulder hip-knee-ankle-";the throwing stage, muscle mobilization order "ankle-knee-hip-shoulder-elbow" complete support to end by angular momentum link transmission link, link to end transfer, make end link (the ball) get great movement speed.2Leading arm action phase, the trunk back, the elbow joint Angle Angle XiaoYue to HuiBei action faster finish. In HuiBei action stage, from the moment the ball hand, wrist joint fixed can improve the beat movement speed of the movement end link, which helps to improve the speed of the ball out.3When throwing, leading arm and throwing action phase, before the deltoid muscle bunch, pectoralis major, abdominal muscle, perpendicular spinal muscular and shares rectus is complete the main force to throw the ball over long distances muscles. So in training athletes should strengthen muscle strength exercises above quickly.4Ma X throw the ball that the ball shot time instantly make moves closer to23.1°Angle to throw the ball out of the long distance Angle, make moves height, shooting Angle are also higher than other subjects, and can be complete the high quality (flat, fast) from the half-way line.5To throw the ball can’t only football distance depends on upper limb power over long distances to throw the ball to complete action, should have the mobilization order muscles,"by next up" a flick, to throw out the far throw-in. Body weight and the flexibility to complete the whole body whips action plays a very important role.