Analyses The Situation And Development Trend Of Li Na’s Tennis Skills

Through the method of video-observation, literature, statistics, comparative and so on, researcher analyses the skill using and the score winning/losing by Li Na in the four Grand Slam Tennis Game, and the conclusions was draw as following:No.1 Li Na is the typical baseline players. Among the eight skills, the rate offorehand using was up to 33.37%, backhand was 28.88%, receiving and serving respectively was 18.49% and 14.30%, the remaining four technologies accounted for only 5%. Li Na mainly rely on her forehand and backhand, serve and return of serve skill.No.2 Li Na’s service was very stable. In the past two years, although her service speed did not hit on the list, the standard deviation from the maximum value 12.780 in 2013 to the minimum value 7.899 in 2014, which greatly improves stability. And we can see Li Na’s service has very good radian and more harsh angle.No.3 Li Na’s receive always be aggressively. The mean points loosed by offensive receive decreased year by year, which was in favor of Li Na occupying the initiative in the competition.It is important to win the game relying on the powerful baseline ability.No.4 The rate of unconventional skills using and it’s scoring was low. In addition to volley and smash, the using rate of drop and lob skill is decreasing.No.5 Li Na’s unconventional skill has changed in 2013.1) the frequency of volley enhanced significantly. After the 2013 Wimbledon, Carlos let Li Na try more volley with the ball. Although Li Na’s using rate of volley is rising that we can see from the data in 2014, the score is not high, and which force the opponent to return the ball hanging on net or out of bounds; 2)The using rate of drop and lob skill is decreasing. Lob skill mainly used in the 2013 Wimbledon, drop skill mainly in french.No.6 The speed of first serve and second serve between China Golden Flower and Li Na has a big gap, and Peng Shuai and Zheng Jie loose many points on double fault, which shows that psychological resistance capability is insufficient except skill.According to the conclusion, combined with the skill situation of Li Na in 2010-20 14 four grand slam, we could put forward the following three suggestions for Chinese ten ms:NO.1 Deepen "solo" mode:With the help of the whole national system strength, we should improve "solo" mode, and it is the security that lead "solo" mode higher, farther, a nd more lasting.NO.2 Strengthen the reserve team of talent:on the one hand,we should attach impo rtance to the selection of tennis reserve talents; on the other hand, we must increase the int ensity to cultivate tennis reserve talents.N0.3 Aimed at the Grand Slam events, we have to pay more attention to the analys is of the characteristics of three site type court(hard, clay and grass), adopting correspond ing tactics.