Analysis On The Effect Of Free Technique Of Chinese And Foreign Women Volleyball Team In 2014 World Women 's Volleyball Grand Prix Finals

Competitive volleyball today has entered a brand new period. The athlete’s physical quality is getting more excellent, and it’s been more obvious on the trend of becoming more high-end and powerful. The online competition is so intense that the matches are held frequently. The jump service and smash come out with high-strength and speed, making the volleyball attack greatly strengthened and the defense more difficult, resulting in the reduce of the number of game rounds and the exciting points. The gap between the strong and the weak is increasing. These all against the wishes that FIVB (International Volleyball Federation) originally wanted to develop the volleyball to be the world’s first motion. To change this unbalanced situation between offense and defense, FIVB agreed a "Libero" rule proposed by JVA (Japan Volleyball Association) in 1998 and put into formal implementation in January 1,1999. The "Libero" rule firstly enhances the first pass and defense, improves the play ball rate, increases the back and forth times. Consequently, it leads more intense competition and enhances the entertainment and appreciation of games. Second, the "Libero" player rule paves a way for new defensive and offensive tactics to come out, enriching the technical and tactical system of volleyball. Third, the "Libero" player rule helps to improve the communication on and off the fields. Finally, players benefit from this rule both physically and mentally. However, the implementation of "Libero" player rule not only has changed volleyball games played but also raised issues on how to find and develop better "Libero" players, and promote the development of volleyball technology of all direction.In this thesis, I analyzed the advantages and disadvantages of the "Libero" player of Chinese women’s volleyball team using the data obtained from 2014 FIVB World Grand Prix Finals by applying multiple methods that included literature review, expert interviews, video and statistical analysis finding out the advantages and disadvantages in terms of technology uses of the free people in Chinese women volleyball and the high-level Libero in world’s powerful teams. Analyze the gap between the teams, and identify the future direction of endeavor. Here follows the conclusions:1、Considering the effect of libero’s return of serve, if comparing the Chinese woman’s v olleyball team libero with the Japanese, there exists a statistical significance in the difference of a rrival rate and error rate, which is shown as Chinese lower arrivalrate, higher error rate and mor e half in place and not in place,these all indicate that there is still certain distance betweeb chine se libero’s level of return of serve and the world’s high standard.2、In the aspect of libero’s denfensive effect, the difference between Chinese woman’s v olleyball team libero and the other five liberos shows no statistical significance, but still exist i n actual result,also, there is no statistical significance comparing Chinese libero and the other fo ur liberos in the error rate, but obvious distance exists in Chinese libero comparing with Japa nese libero. Long distance also can be both found in the in place rate and error rate of the sttac k receive,the error rate is also higher than the libero of Turks and Russians.3、In the aspect of retrieving ball, there is also no statistical significance between the Chin ese woman’s volleyball team libero and other liberos. Although we have a higher error rate, t he total amount of retrieving rebound ball is much larger, which means Chinese libero have go t a good sense in this. On the other hand, Chinese libero are poorer in attacking.4、In the pinch receiver pass in place rate, there is no statistical significance between Chi nese libero and other teams’libero, except for Camilla from Brazilian team and Chen Zhan. The amount of the libero use to adjust pass ball by overarm pass is less than by pinch receiver. Thi s asks the libero for more basic skills in pass. Chinese woman’s volleyball team libero acts be tter in the way of adjusting pass, but still made two faults.