A Study On The Effect Of The First Four Teams In The Final Stage Of The Chinese Men's Basketball Professional League In2017/2018 On The Use Of The Defense Tactics Of The First Four Teams In The First Four Regions Of The National Basketball League

With the continuous development of basketball,some rules of basketball have also changed,which are mainly reflected in the changes in the three-point area of the basketball field and the changes in the interior restriction area.The three-point line of the basketball field has increased from the original 6.25 meters to the current 6.75 meters.The transformation of the restricted area has also changed from the previous trapezoidal area to the current rectangular area.There is no doubt that the changes in basketball rules will make it more difficult for athletes to use the 2-3 area defense defense tactics.The purpose of my thesis is to enhance the tactical ability of the professional men's basketball team to use 2-3 regional defense and improve the effectiveness of athletes in basketball games to use 2-3 regional defense defense tactics,and provide theoretical reference for basketball coaches at all stages.The significance of the study is whether it can achieve a certain effect when using 2-3 area defense at a special stage in basketball games.On the basis of the theory of the original 2-3 regional defense defense tactics,further deepen the understanding of coaches and athletes on the 2-3 regional defense defense tactics,re-improve the understanding of the 2-3 regional defense defense tactics,and create a new defensive concept.Combining the new 2-3 regional defense defense tactics with other defensive forms,such as combining human and human defense and other forms of regional defense in basketball games,In the basketball game for the vast number of basketball trainers to provide a more reliable,more effective choice of tacticalThis article selected the top four players in the 2017-2018 season before the Chinese professional men's basketball finals as the investigation object,and studied 2-3 regional defense defense tactics as the research object,through literature,mathematical statistics,video observation,summary induction and other research methods.The timing,effect and characteristics of the 2-3 regional defense tactics of the top four teams in the Chinese men's basketball professional league are studied and analyzed.The following conclusions were drawn:1.2-3 Regional defense tactics are an important part of the defensive tactics of the men's middle class basketball league,but the team generally only uses 2-3 regional defense targeted at some special stages.2.2-3 Regional defense defense tactics have played a certain role in the use of the top four teams,but the effect tends to be general.According to the data analysis of the steals and rebounds in the defense of the 2-3 area,the effect ratio of the steals is 2.83:1,the effect ratio of the rebounds is 2.46:1,and the effect ratio of the faults is 3.18:13.The top four in the CBA finals are usually focused on the use of 2-3 regional defense tactics at some time of the game,especially when the team scores behind the team's score.4.2-3 The use of regional defense defense tactics mainly depends on the defensive tacit understanding between players.Players can not effectively combine defense,rebounding and stealing the ball,and can not effectively combine 2-3 regional defense and offense.5.2-3 Regional defense defense tactics in the first four of the CBA finals showed: collective characteristics,offensive characteristics,targeted characteristics,destructive characteristics,cohesive features,inductive features,flexbility features.