Comprehensive Evaluation And Analysis Of Offensive And Defensive Skills And Tactics Of Rio Olympic Women's Volleyball Teams

Preparations for the Rio Olympic Games,the women's volleyball teams all over the world have made a large scale adjustment,there are varying degrees of change in staff linkage and technical methods,In this context,the Chinese women's volleyball team won the world champion again in the Rio Olympic Games 12 years apart,to understand the current level of the women's volleyball team,know yourself as well as the enemy,providing valuable reference for the later training and competition of the Chinese women's volleyball team.The analysis of the stability of the 12 techniques of the women's volleyball team in the Rio Olympic Games;using RSR method rank the rank of technical index data for attack and defense,and the related analysis of the number of teams,a more accurate and thorough understanding of the technical factors affecting the performance of the competition;cluster analysis of teams,at the same time,the attack and Defense Tactics between teams are compared and analyzed,find out the advantages and gaps between Chinese women's volleyball team and their opponents,and then analyze the shortcomings of the Chinese women's volleyball team in the competition,the results of the analysis are as follows:1.In the game,the various skills of the Chinese team fluctuated to varying degrees,there is a strong,strong and weak phenomenon.Offensive aspect,the technology of the Chinese team and the Brazil team is the most stable,the strongest offensive Strength,failure rate of smash and failure rate of serve the two are almost horizontal.Defensive aspect,the technology of Puerto Rico and Serbia is the most stable,in the block defensive skills have an absolute advantage,American team second,The defensive technology of the Chinese team is the most unstable,The error rate is always high and fluctuates,the error rate is always high and fluctuates,Defense Technology the overall level needs to be further improved.2.Through the study of correlation analysis,the scoring rate of attack skill is directly related to team ranking,scoring index of attack skill is directly related to team ranking,the scoring rates of spiking and blocking two technologies are particularly significant,the error rate is not significantly related to the rank of the team.The success rate of second pass in defensive technology is directly related to team ranking.3.In the competition,each team's offensive tactics style can be divided into five categories by clustering,The American team is A1,the main score is dominated by strong strong attack,categorize as a strong offensive team;Brazil and Japan are A2,with a strong offensive strength and a low error rate to maintain stability,To be classified as a conservative team;Chinese team is A3,it has higher offensive power and higher error rate,categorize as an adventurous team;The A4 category is a team with weak comprehensive strength;The A5 category is a progressive team.4.Compared with the opponent teams,there is no obvious difference in the offensive strength between the Chinese team and the opponent teams,but the errors of spiking and serving are significantly higher than those of the opponents.In terms of defense index,defensive technical indicators are slightly weaker,and there is no significant difference compared with their opponents,and defensive skill level is roughly equal to their opponents.