Correlation Analysis Between Structural Characteristics Of Hitting Motion And Hitting Effect Of Young Table Tennis Players

Table tennis is a fast speed,strong rotation,high requirements for the sports,"power,speed,rotation,placement and arc" five elements constitute the foundation of table tennis.Table tennis technology requires the organic combination of technology,quality and tactics.The long-term popularity of table tennis in China is inseparable from China's emphasis on the cultivation of young table tennis players.Young people will be the main force of table tennis in China in the future.In the training of young people,we should do a solid job in the training of basic skills.At the present stage,in order to train more and more excellent table tennis players,we must pay attention to the strengthening of professional skills.For the young athletes,strengthening the training of basic skills is the most important task in the youth training.Basic skills are composed of a single basic technique,the correct technique is inseparable from the standard action structure.In the game,the score is based on the reasonable structure of the stroke,so the structure of the stroke directly affects the effect of the stroke.The purpose of this study lies in the use of motion capture system to structure features of strokes,and the relevant factors of indicators to data collection,analysis on the impact of different strokes structure model on the hitting effect difference,thus to analyze the factors influencing the effect of juvenile table tennis players hit the ball,make teenagers athletes improve the technical structure,so as to achieve the purpose of effectively improve the quality of the players hit the ball.This research adopts literature method,mathematical statistics,expert consultation method,experimental method,mathematical statistics and logic analysis and other research methods,to institute of the Chinese table tennis college young athletes 30 people(the 15 men and women,are all right hand a post-binge loop combination of fast-break game)as the research object,analyzing youth strokes structure characteristics and the effects of correlation.Research results:(1)In the process of the direct hand spin stroke of the young table tennis players,the structure types of the direct hand spin stroke are divided into fast type and slow type according to the length of the three stages of the players' hitting.Through the research,it is found that there is a significant correlation between the structural characteristics of the batting action and the batting effect.(2)Structural features of fast hitting:In the beating stage,the Angle of the elbow joint and the hip joint changes greatly,the wrist joint displacement is larger,the displacement of the three joints of the lower limbs is smaller,the linear velocity of the wrist joint and the hip joint is larger,and the angular velocity of the elbow joint and the hip joint is larger.Hitting stage: the elbow joint and hip joint Angle is larger,the wrist joint and hip joint displacement is larger,the wrist joint and hip joint line speed is faster;Angular velocity of elbow and hip joint;Reduction stage: the displacement of shoulder joint and ankle joint was relatively small,and that of wrist joint was relatively large.The linear velocity of the wrist andelbow joint is faster,and the angular velocity of the elbow joint and hip joint changes faster.(3)structural features of slow hitting:In the tapping stage,the Angle of the hip joint changed the most,and the displacement of the three joints of the lower limb was larger.The hip joint has the highest angular velocity;The wrist and hip joint have the highest linear velocity;Hitting stage: the angular velocity of the hip joint changes the most and the displacement of the wrist joint and knee joint is larger.The hip and ankle joints have higher angular velocity.Faster linear velocity of wrist and knee joint;Reduction stage: the Angle of hip joint and wrist joint was larger,and the displacement of knee joint and ankle joint of lower limb was larger.The angular velocity of the upper limb is rapid,the angular velocity of the lower limb hip joint is fast,and the linear velocity of the elbow joint is fast.(4)the lead time of fast players is negatively correlated with the ball speed,and the hip joint angular speed and ankle angular speed are positively correlated with the ball speed,both of which are very significant.In the process of hitting the ball,the structural characteristics of most of the key points are negatively correlated with the hitting point,and there is no significant correlation.(5)the swing time of slow players is negatively correlated with the ball speed and rotation speed,which is very significant.The angular velocity of the ankle joint is positively correlated with the ball velocity and the correlation is significant.The linear velocity of the ankle joint is negatively correlated with the ball speed and rotational speed,and the correlation is very significant.