Biomechanical Analysis Of The One-Motion Shooting Technique

With the popularization of One-Motion jump shooting technology,more and more basketball players and professional players join the users of One-Motion jump shooting technology,this paper analyzes the biomechanical characteristics of One-Moiton jump shooting technology,the muscle force sequence,the duration,the joint angle and the extension time of the joint.In order to skillfully master the theoretical basis of One-Motion jump shooting technology in the daily teaching practice and sports training,and to provide favorable conditions for One-Motion jump shooting technology users to better grasp the movements.This paper uses the literature method to select the basis,the purpose,the significance,the method of the relevant information to make a detailed induction and summary;By adopting the experimental method,Using the Qualisys600 series of infrared high-speed motion capture system,The 16-Channel Trigno? Wireless surface EMG system,For nine secondary basketball players in Mudanjiang City who used One-Motion jump shooting skills,For the acquisition of muscle EMG signals and the acquisition of joint kinematic features,Find out the rule of One-Motion jump shooting technique;Using the mathematical and statistical method,To smooth and process the measured experimental data by Qualisys Track Manager and MATLAB R2019 a system,The average and standard deviation of the measured joint angles were then calculated by Excel and Office software.The study results are as follows:1.Divdivided according to the trial action,the average time in the ball holding stage was 0.349 s and the average time used in the ball shot phase was 0.15 s.The time taken throughout the movement process was 0.498 s.The time spent holding the ball up the stage is70% of the total movement time.2.During the whole One-Motion jump shooting process,the first muscles to discharge are the lateral gastrocnemius of the left and right legs,left and right rectus,left and right extensors,right biceps.The latest muscles to discharge are the right latissimus dorsi and the right triceps.3.In the rising stage of holding the ball,the main muscles of the lower limbs are the lateral gastrocnemius muscles of the left and right legs and the rectus femoral muscles of the left and right legs,and the main muscles of the upper limb muscles are the left and right side extensor wrist muscles and the right biceps muscles.In the ball shot stage,the muscles in the core area of the body are the left and right rectus abdominis,and the upper limb muscles are the right latissimus dorsi and the right triceps.4.During the whole movement,the largest joint changes were 149.78,the smallest joint hip joint 12.54,the shortest joint extension time,the elbow joint 501.2 / s,followed by the shoulder joint 232.36 / s,and the slowest hip joint 25.27 / s.conclusion:1.One-Motion The whole process of jumping shooting technique is the coordination of each link,and the links are closely connected.2.During the whole movement,among the measured muscles,the lateral gastrocnemius discharge time of the lower limb muscles lasted for the longest time,followed by the rectus femoris discharge last time,and both were the main force muscles of the lower limbs.The right triceps muscles of the upper limb muscles continue to discharge the longest,followed by the wrist extensor muscles,as the main force muscle in the ball shot stage.3.The shoulder extends the most throughout the movement;the elbow extends the second,but less than the shoulder joint,making the elbow the largest and second by the shoulder joint.4.During the whole movement,the hip joint is the central link of all links.Not only the smallest Angle change,but also the smallest average Angle speed,which is the guarantee of the coordination of the upper and lower limb links.In the whole process of One-Motion jump shooting action,maintaining the relative stability of the hip joint is conducive to the coordination between the upper and lower limbs,and is conducive to the action effect of the movement completion.