Comparative Analysis Of Biomechanics Of Female Badminton Players In Forehand Positioning And Squatting

Research purposes: Through the biomechanical analysis of the forehand killing and sling technique movements of 7 women's national first-class badminton players and 1 national-level athletes,and setting the control group with expectations and no expectations,to simulate training and competition Two scenarios are used to understand the basic laws and characteristics of the two technical movements of badminton killing and slinging,and to study the joint movement structure of these two technical movements,so as to analyze the similarities and differences between strangle and sling Sex.Research method: The experimental test site was in the Sports Biomechanics Laboratory of the Research Center of Beijing Sport University.Using the 8-shot infrared high-speed motion capture system(Motion Analysis Raptor-4,USA)to train the torso and upper limbs of the seven women's national first-class badminton players and one national-level athletes for the forehand and sling techniques Perform synchronous acquisition.According to the completion degree of the motion technology,it is divided into stages,a preparation stage,an accelerated hitting stage,and an ending stage.Use the Motion test system to smooth the raw data.When analyzing the impact of the hitting state and technical actions on the relevant biomechanical indicators,the two-factor repeated measures ANOVA method is used to measure the two hitting states(expected and unanticipated).And two technical actions(squatting and killing)statistical analysis of the corresponding parameters.The results of the study: the time parameter is faster than the squat,the sling is not as fast as expected,and there is no difference in the killing;the speed parameter is faster than the sling,and there is no obvious difference between the sling and the proximal joint of the body.The appearance time is faster than the killing,the maximum speed of the distal joint appears slower than the strangle;the angle,angle and speed parameters of the shoulder,elbow,wrist and torso are more than the sling,which is expected to be greater than expected.Research conclusions: The two technical movements of sling and killing are faster in terms of time parameters and speed parameters,but the effect of slinging on the deceptive state of the hitting state is better.In terms of angle parameters and angular velocity parameters,the angle of attack is greater than that of the sling,especially in the joints of the elbow and wrist.It is characterized by a higher sling shot point,a lower smashing pressure point,and a sling in the shoulder joint and the trunk.It is more stable than strangling,and the expected state of hitting is significantly higher than expected.To a certain extent,sling and stifle have the possibility of mutual conversion,but there is a very high demand for athletes' body control ability.