Comparative Study On The Characteristics Of The Off-ball Screen In The Position Defensive Of The 32th Olympic Games

In today’s basketball competition,the technical style of players has gradually changed to be dominated by shooting from outside,towards a trend of comprehensive technology and blurred positions.With the advent of the "small ball era",the style of basketball competition in the world is also deeply influenced by it.The outside three-point shooting rate is getting higher and higher,and the shooting range is getting wider and wider.As we get older,speed,three-pointers,space and screening are the hallmarks of the "small ball era".In this context,the transformation of tactical strategies has also been exacerbated,and most tactical coordination is inseparable from screening coordination.Screening with or without the ball is a very important part of the team’s tactical system.After the player passes the screen without the ball,he has a variety of offensive options.He can cut down or move laterally to catch the ball.Being able to pass and screen again is extremely threatening,and how to solve this threat and how to reduce the offensive threat of off-ball screening cooperation is a problem that we need to solve.This paper takes the characteristics of the 32 nd Olympic men’s basketball quarterfinals as the research object,and analyzes the characteristics of the 32 nd Olympic men’s basketball quarterfinals（United States,France,Australia,Slovenia,Italy,Spain,Germany and Argentina）.)to conduct in-depth research on the defensive choices made in the face of off-ball screening coordination,starting from five aspects such as the time,area,personnel combination,defensive method and method effectiveness of the defensive off-ball screening coordination,and statistics its performance in each Time,the number of defensive off-ball screenings used in the area,the number of defensive personnel combinations involved,the number of defensive methods used,and the effectiveness of defensive methods.After careful research and analysis of the statistical data,it was concluded that the top eight teams cooperated in defensive off-ball screening.The problems and advantages of the game have contributed to the theoretical system of basketball defense in our country.By means of research methods such as literature materials,expert interviews,video analysis and mathematical statistics,professional video analysis software was used to intercept and repeatedly watch the clips of the Olympic men’s basketball team’s defensive off-ball screening and cooperation,and the following conclusions were drawn: A few conclusions:1.In the quarterfinals,the three continents of Europe,America and Asia initiated defensive off-ball screen cooperation mainly within 5-9 seconds of 24 seconds.The communication between the players without the ball and the players with the ball after the off-ball screen coordination should be defended to prevent them from forming effective offensive space and tactical arrangement.2.Zone 2 and zone 5（restricted zone）are the main areas of defensive off-ball screen.In the face of the outside team,mainly focused on the ball off screen with the defense of zone 2,while the inside team is focused on the defense of zone 5.3.From the perspective of the personnel combination for defense without the ball and cover,Europe,America and Asia mainly have the defensive combination of the defender and the center,the defender and the power forward;it shows that in the modern basketball competition,the key to the combination of the defense without the ball and the cover is to strengthen the defender.Defensive combination training with the inside line.4.In the quarter-finals,the overall method of defending without the ball and screening is based on pushing through,supplemented by exchange and passing;among them,Eurasia mainly pushes through,and America mainly relies on switching.5.From the point of view of the effect of the defensive off-ball screen coordination method,the effect of successful defense is mainly reflected in three aspects: no vacancy,missed shot and defensive rebound.The effect of defensive failure mainly lies in shooting and grabbing offensive rebound after defending without ball screen.It shows that in the future teaching and training,in addition to preventing the vacancy after the off-ball screen cooperation,it is necessary to strengthen the shooting defense after the off-ball screen cooperation and the subsequent rebound competition training.