| Seven teams have won 11 championships since the NBA 2007-17 season.The Los Angeles Lakers won the championship twice in the 08-10 season.The Miami Heat won the championship twice in the 10-13 season.The Golden State Warriors in the 14 th season.He has won three championships since.The technical configuration of the champion team's staffing,game style,offensive and defensive end has produced significant changes,the pick and roll tactics are increasingly favored,and the number of hits in the 3-point shots has increased significantly.This paper analyzes the player's quality characteristics,coaching characteristics,team play,offensive and defensive technical statistics through video analysis,literature,mathematical statistics and logic analysis to Boston Celtics,Los Angeles.The Lakers,the Dallas Mavericks,the Miami Heat,the San Antonio Spurs,the Golden State Warriors,and the Cleveland Cavaliers have played in the playoffs of the seven seasons.The study found changes in the offensive and defensive characteristics of the NBA 2007-17 championship team in the playoffs.Concluded as follow:1.The average Ketole index of the champion team's main players has the highest 540 to 495 in recent seasons.The downward trend is obvious.The decrease in the Quetelet index indicates that the player's strength is decreasing and the physical strength may be declining.The player's ability to move is improved and adapts to the fast pace of the game.2.the coach's coaching philosophy has its own characteristics,and the competition style interacts.The characteristics of the team are from the early stage of the 11 th season,the ability to attack and the anti-tempo is relatively slow,and the ability to move is strong.The focus of the team's offense was shifted from the inside to the outside.The inside players' responsibilities were changed from the early rim of the 11 season to the team's offense.The outside player becomes the tactical center of the team.3.On the offensive side:The two players' average playing time has been reduced from about 40 minutes in the early days to around 37 minutes in recent seasons.The base-to-base ratio of the offensive opportunity every 48 minutes was significantly higher than the 13-14 season after the 13-14 season,from the early 90-94 to 95-100.The number of 2-point shots and scoring averages were significantly higher after the 13-14 season than before the 13-14 season.The true shooting percentage is basically stable.The number of 3-point shots increased from the early 15-20 times to about 30 times.The number of 3-point hits rose from the early 6-8 times to 11-13 times.The offensive efficiency value has risen from below 110 to above 110.The accelerated pace of the game has led to an overall improvement in statistics,and 3-pointers occupy a more important position in the game.4.On the defensive side: Compared with the 08-09 season,the steal-off data has a fixed-base ratio that is higher than the 12-13 season after the 12-13 season.Compared with the 08-09 season,the cap data base ratio is lower than 1,which has a downward trend.The number of fouls in the championship team dropped from around 23 times per game to around 20 times.The defensive rebound rate rose from 72%-74% before the 12-13 season to 75%-79%.The defensive range of the NBA game has increased with the increase in 3-point shooting,and the outside area has become the focus of competition.The reduction in the number of fouls may be due to strict control of the protection of the main players and a reduction in the impact on the inside.The increase in backcourt rebound rate on the one hand indicates that the champion team's ability to protect the rebounding ball is enhanced.On the one hand,the pace of the game may be accelerated,causing the offensive team to quickly retreat and reduce the rebounding of the offensive rebounds. |
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