A Study On Table Tennis Element "Trajectory" And Exploration Of Technique Innovation

Study of competitive elements is important part of table tennis essence law.Which guide the development of China table tennis for long-term.The formation and development of table tennis has been guiding the development of table tennis in China.The related workers have inherited and developed it,and have completed the practice summary and theory promotion,and formed the theory and practice of table tennis.More monograph research and summary report."Arc" elements as an important element of competitive elements,the study of the nature of the law to explore the project provides an important information,has important theoretical value and practical guidance.This paper summarizes the formation and development of competitive elements of table tennis by means of experimental method,literature data,mathematical statistics and so on,and makes a comparative analysis of the changes of the side view and the top view angle of the arc,Horizontal space changes in the trend of technological development of the backhand write-off technology research,and from the perspective of anatomy and biomechanical analysis of the technology.Finally,the following main conclusions are drawn:1,speed,power,rotation,placement,arc five competitive elements are both independent of each other,but also linked to each of the four elements in a specific historical context play a winning role,the elements of qualitative research to quantitative research Research,single factor research to compound factor research,single discipline to interdisciplinary research development changes.The tactical value and the winning effect of arc elements are few and need to be further expanded.2,the side of the viewing angle on the first curvature of the ball is significantly higher than the second arc,the greater the degree of rotation,the higher the height difference between the two higher.The falling of the arc is an important feature of the arc on the spin,rather than the conventional "out","jump" and "channeling" and "slow" phenomena are two pairs of opposing phenomena,with the rotation speed,the table friction coefficient and translational Speed,and rotational speed.In practice,four unconventional arcs have excellent practical use value.3,overlooking the angle of view of the arc lateral deflection degree and table tennis lateral rotation degree was positively correlated.Rotation speed is similar to the case,the lateral deflection of the side spin> side spin> on the spin;active manufacturing with a lateral deflection of the ball back to fully mobilize the opponent,increase the opponent's moving distance,and thus improve the threat of the ball back.The lateral deflection of the arc has a high tactical value and an important principle of technological innovation.4,backhand Pie tear technology is the technology development trend under the guidance of the new technology,through the waist and abdomen adduction to expand the filming space,and through the lower limbs pedal turn,waist and abdomen of the right hand,as well as shoulder,elbow joint abduction and sinking And so on to complete a relatively stable chain of force,in line with the anatomy and biomechanical principles;practice emphasizes the use of horizontal space position,pay attention to backhand to the forehand of the mobilization,training focus on technical progress and backhand...