| Objective: To analyze the hitting effects and characteristics of different rotation modes of badminton doubles,explore the differences between different rotation modes,and put forward suggestions for improving the technical and tactical level of doubles.Methods: By using the method of literature data,mathematical statistics,video observation and comparative analysis,50 sets of 20 matches of excellent doubles players from 2019 to2021 were selected as research samples to analyze the influence of different rotation methods on the hitting result,hitting area,hitting height and hitting speed,etc.The results are as follows:(1)There are 24 direct,indirect or creative scores in the front-back transition,and 11 direct,indirect or forced to lose points.There are 46 direct,indirect or creative scores and 30 direct,indirect or forced to lose points in the rear-front transition.There were 2 direct,indirect or creative scores and 3 direct,indirect or creative losses in the right-left turn.(2)The average hitting height of t1-t3 is 1.31 m,1.76 m and 2.22 m respectively.The hitting height of t1 is mainly concentrated in 1-1.5 m,and the hitting height of t3 is concentrated in 2.5-3 m.The hitting height of t3 is generally higher than that of t2.The average hitting heights of rear-front wheel transition t1-t3 are 2.05 m,1.67 m and 2.16 m respectively.The hitting height of t1 is concentrated at 2-2.5 m,and t3 is concentrated at 2.5-3m.(3)The four types of rotation DP are mainly concentrated in the range of 1-1.5m,and there is no significant difference.(4)The average batting speed of front-rear wheel transition t1-t3 is 24.9m / s,33.1m / s and 45.6m / s respectively.t1 and t2 are mainly concentrated in 20-40 m / s,t3 is mainly concentrated in 60-80 m / s.The average batting speed of the rear-front wheel transition t1-t3 is 47.0 m / s,31.8 m / s and 44.2 m / s,respectively.The velocity distribution of t1 and t3 is uniform,and t2 is mainly distributed in the range of 20-40 m / s.The average batting speed of the left-right turn transition is 19.9m / s,22.6m / s and 36 m / s respectively.The average batting speeds of the right-left rounds were 20.8 m / s,27.5 m / s and 40.2 m / s,respectively.To sum up,the total score of the front-rear wheel transition and the back-front wheel transition is greater than the total number of points lost.These two types of rotation are profitable in the hitting results,and the possibility of the other two rotations should be reduced in the game.The hitting height of t3 in front-rear wheel transition and rear-front wheel transition will be higher than that of t1 in general,and its hitting effect will be better than that of t1.The hitting height of t1-t3 in front-rear wheel transition shows a gradual increase,indicating that his hitting effect is getting better and better.The front-rear wheel transition,left-right wheel transition and right-left wheel transition t1-t3 batting speed is getting faster and faster,indicating that its batting effect is getting better and better. |
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