Research objective:In recent years, tennis has been developing steadily in our country,with people involved increasingly. Meanwhile the performance of tennis players in our country has improved significantly. But the young female tennis players grow up slowly, and they are not so good at tennis skills compared with the world’s excellent female tennis players.Therefore, it is necessary to find out the difference between Chinese female tennis players and world’s excellent female tennis players by making a comparative study on their tennis skills,which will consequently help improve the skills of Chinese female tennis players.Research methods: By using 5 foreign players among the 15 top players in WTA and the top 3 Chinese players of WTA in 2015 as the research objects, namely, Serena Williams,Sharapova, Muguruza, Agnieszka Radwanska, Karolina Pliskova, Wangqiang, Duan Yingying and Zheng Saisai, the present paper carries out a contrastive analysis on service data of the above players by employing literature, video analysis and mathematical statistics, and draws the following conclusions.(1) Chinese excellent tennis single players are a little bit shorter than the world’s excellent tennis single players, with weight and Quetelet index a little bit higher, but there is no significant difference, which indicates that physical qualities of the excellent women tennis players are stable.(2) The first service success rate of Chinese women tennis players is 71.67%, which is higher than that(60.58%(P<0.05)) of world’s excellent women tennis players. It shows that there is significant difference between them. But the first and second service scoring rate of Chinese women tennis players are 60.67% and 44%, which are lower than those(70.9% and47.60%) of world’s excellent women tennis players. The significant difference(P<0.05) to the first service scoring rate indicates that Chinese players reduce their service speed and strength to guarantee the first service success rate, which result in the weak attack of service.(3) In ACE, the first service speed, the second service speed and the fastest second service speed, Chinese women tennis players are lower than world’s excellent women tennis players, but there is no significant difference. In the lowest first service speed and the fastest second service, Chinese women tennis players are equal to world’s excellent women tennis players, with average first service speed and the lowest second service speed a little bit higher.The above indicates that there is no big difference to service between Chinese players and foreign players.(4) The analysis shows that Chinese tennis players serving speed is more slowly and less threatening in the more difficult District No. 2 with more placement.(5) According to the statistical research of service points, we find that District No.1 is an ideal area for placement of the second service. District No.3 area of the left court and District No.1 of the right court is not the more intensive placement of players both at home and abroad,but also a higher scoring rate and success rate court.(6) In addition, we find that Chinese tennis players suffer more serious psychological disturbance when serving when they are subjected to weather and environmental impact,when their score is closer to the opponents, when the competition is more intense and when they are influenced by emotional factors, high psychological pressure and other special circumstances.Given the current status of tennis players’ serving skills, service must be the priority of our training. And serving skills will be improved through special training. While improving serving attack power, we should pay more attention to scoring rate. |