Analysis And Research On The Techniques And Tactics Of The Top Eight Volleyball Women’s Youth Teams In The 14th National Games

The National Games of the People’s Republic of China is the most significant comprehensive sporting event in China’s competitive sports,designed to promote the continuous improvement of the overall level of competitive sports,to achieve the strategic goals of national competitive sports and to facilitate the sustainable development of mass sports.The top eight teams in the young women volleyball group of the 14 th National Games had entered the final after a fierce competition in the preliminary rounds.The level of the final teams was the highest level of competition for young women volleyball players in China,and as the main reserve force of Chinese women volleyball players,the training and cultivation of their tactics level played a great role in the development of Chinese women volleyball players.To facilitate the sustainable development of the Chinese women volleyball players,a positive development of the reserve capacity of volleyball had also emerged as a hot topic of research for many scholars.Based on this,with the methods of literature,expert interview,video analysis,mathematical statistics and TOPSIS-RSR comprehensive evaluation,a comparative analysis of the offensive and defensive strengths of the top eight teams in the Young Women Volleyball Players of the14 th National Games was conducted using their technical and tactical index data as empirical research materials,with the aim of identifying the strengths and weaknesses of each young player and improving the relevance of subsequent training.The final conclusions are as follows:(1)At the level of non-tactics indicators: the eight young women volleyball teams differed in physical form to a certain extent,with Jiangsu having obvious advantages in height,Quetelet index,block height,and smash height,and obvious strength in tennis net,while Shanxi and Shaanxi teams had obvious disadvantages in height,smash height and block height.(2)At the technical level: 1.Service technique: the level of young women volleyball team’s service technique had not yet matured,the overall success rate of service was low and the error rate of service was high and there was still a certain gap with the national team women’s volleyball team,among the eight teams,Jiangsu,Tianjin and Shandong had a higher success rate of service and a lower error rate.2.Catching and service technique: there was variability in the eight teams’ catching and service technique,and the eight teams’ catching and service technique was positively correlated with their ranking,with Shanxi and Shaanxi teams having weaker catching and service strength.3.Smash technique: Jiangsu led the way in smash scores with a high success rate.The overall smash strength of Beijing,Shanxi and Shaanxi was weaker,while other teams did not have major differences in their smash effectiveness.4.Block technique: in the block effect,the block of Tianjin team was outstanding,and the height advantage was reflected in the block,while the block level of the remaining teams was roughly positively correlated with the ranking.5.Defensive technique: Fujian team was the most effective defensively,with higher ability in terms of defensive stance and defensive technique.Jiangsu,Tianjin and Shanghai have stronger defensive skills,while the rest of the teams are weaker defensively.6.Toss pass: less variation existed in the toss pass effectiveness of the eight teams,the overall strength of the toss was more mature and the pass stability was stronger.(3)At the tactic level: all eight teams chose to serve more at the 1,5 and 6 positions,serving the main attacker or setter who dropped down in the front row to receive the first pass,building up a match advantage,mobilizing the main attacker or setter to increase their physical exertion,reducing their attacking power,and increasing the block reaction time for the local blockers.The effectiveness of the eight teams’ attacks was roughly positively correlated with their rankings,with Jiangsu being the most effective and more breakthrough,and Shaanxi being the least effective.All eight teams relied heavily on their main scoring point and were prone to losing points in a row in a given round when the main scoring point rotates to the back row.In terms of fast-break tactics,Fujian team and Jiangsu team had stronger fast-break tactics and higher scoring rate.In terms of defensive tactics,all teams adopted the “side-cover defense” defensive formation with the free man as the core.(4)Comprehensive evaluation: with the use of Pearson test,the offensive competitive strength,defensive competitive strength and offensive and defensive competitive strength of each young women volleyball team were significantly correlated with the final ranking of the competition,the higher the offensive and defensive RSR value the higher the final ranking of the team,and vice versa the lower the ranking.The overall offensive and defensive strength of Jiangsu team was outstanding,with an overall RSR rating of 0.8534 > 0.80,the only team with a grade of A among the eight teams.Tianjin team and Fujian team had an overall offensive and defensive RSR value between 0.60 and 0.79,both fell into the B grade level,with stronger offensive and defensive strength.The overall offensive and defensive RSR values of Shanghai team,Shandong team,Beijing team and Shaanxi team were between 0.40-0.59 with a grade of C overall weak offensive and defensive strength,with Shanxi team being the weakest among the 8 teams with an RSR value of 0.3731 and a grade rating of D.