2019 U.S. NCAA Men’s Basketball Top 8 Switch Defensive Characteristics Study

In modern basketball,with the popularization of conversion attack,the conversion defense for fast attack is also more and more valued by teams in the world,and also puts forward higher defense requirements for teams from attack to defense.Therefore,it is very necessary to learn the law of conversion defense and strengthen the research of conversion defense.American college basketball has a strong foundation and far-reaching history,the teams in offensive and defensive tactics are relatively perfect,systematic training system,so through the world of the highest level college basketball league eight transformation of the defensive characteristics analysis and research,summed up the excellent team in the game,to enrich China’s basketball transformation defense training system to provide theoretical support.In order to study the defensive characteristics of the NCAA eight,this paper uses the literature method,expert method,the interview method,video analysis and mathematical statistics,using SportsCode video analysis software to intercept all the videos,the use of fast attack and link attack.The main research conclusions are as follows:1.The game of the last eight emphasizes the importance of the first three steps in preventing fast attack.The main defensive strategy is to prevent the layup and force the other side to make medium and long range shooting,control the operation direction and reception of the opponent ball,and give into account the focus on important players.Block the other team to and the other players accelerate the defensive strategy of retreating to the half of the ball and force the opponent to push from the edge.Then the team actively seize the attack route and adhere to the principle of not breaking in the middle.2.In the last eight games when the attack as the center,priority to the ball holding offensive players,other defenders for active defense rotation and contraction defense.The cover is mainly the delay and inside contraction of the outside of the chase;the points mainly to prevent the middle break,using the weak side and the inside players to shrink the defense inside,ensure physical contact,interfere with the pass route and offensive space,not easy catch into the layup and force the offensive players to stay away from the three seconds.3.The overall characteristics of the last eight games in the conversion defense for the defenders to accelerate the defense below the ball line(Level of Ball),priority protection limit area,use finger pointing and the defense language actively communication,the holder near the three point line,delay the advance of the ball and put pressure on the ball,and implement the basic defense principle of opposition and overall defense.