| In the Rio Olympic Games,the Chinese women's volleyball team won the champion to cheer the whole country,the new Olympic Games is coming,people have high hopes for the Chinese women's volleyball team.With the Tokyo Olympic Games approaching,the Chinese women's volleyball team regrouped and prepared for the games.This study selected 2017-2018 season's premier league's top four Chinese women's volleyball team's ace spiker to participate in the games as the research object,USES the literature material law,video observation method,mathematical statistics and other research methods,for the last four teams in different locations in the core main smash,drop shot,the ball quality,were analyzed,the effect of different attack system spiking aims to Chinese women's volleyball team prepare for the Tokyo Olympic Games cycle optimization tactics,strengthen weak links,to consolidate the position of the world-class provide some academic basis.The research results show that:1.There was no significant statistical difference between core attack and non-core attack in terms of age,height,weight,spike height and kleto index between the top four teams.The height and spike height of the core attack are higher than the average of non-core players.2.From the overall spike situation,there is no significant difference in the scoring rate between the four players,and li yingying has the highest spike scoring rate.Li yingying's direct scoring rate was the highest at 44%,the lowest at golden soft king 41%,there is no significant statistical difference.Golden soft king has the highest smash break rate and the lowest concealment rate,which is significantly different from the other three players.3.There is a significant difference in the number of number 4 spike between core spiker and back spiker.Li yingying has the highest proportion of back row and the lowest proportion of back row.For the spike effect in different positions,li yingying had the highest score rate at the no.4 position and the lowest golden soft scene,but the golden soft scene had the lowest spike loss rate and the highest spike loss rate in the segment.The golden soft king back row spike rate is the other three core players in the lowest rate.The success rate of segment put is highest for 45%,but drop rate is highest also,its progress space is very big.Zhang changning has the lowest scoring rate of 32% in the back row.As the core player of the Chinese women's volleyball team,the strength of the back row needs to be further improved.4.There are differences in different ways of spiking,among which li yingying has the highest proportion of slanting in spiking,and the success rate of slanting is significantly different from other players.The lowest proportion of the four players who buckle the diagonal line is the golden soft shot,but the proportion of the golden soft shot is obviously the highest among the four players,and there is a significant difference.Zhang changning linear spike success rate is the lowest,with other players linear spike success rate has significant difference,out of bounds rate and blocked rate is also the highest.5.There is a certain difference between the proportion of the core players' one-attack spike and the proportion of the anti-reverse spike.Gold soft king buckle anti-ball most,and li ying ying buckle a ball most,may reflect the different style of different teams.In the first attack,li yingying had the highest direct scoring rate,which was significantly different from other players.6.Different core players have similar percentages of good and bad shots.Under the condition of good pilling quality,the success rate of spiking increased obviously and the rate of losing points decreased obviously.Under the condition of poor pilling quality,li yingying is the most stable,but the drop rate is also high,suggesting that she has the room for improvement in technique;The out-of-bounds rate and blocking rate of segment release are the highest,with a certain statistical trend.7.When facing multiple block,li yingying has the highest attack efficiency,but the probability of single block being blocked is even higher than the direct scoring rate.There is also a similar situation,this point we two young players in the attack to increase their experience and skills,improve their face single block when the scoring situation. |
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