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前言在篮球竞赛中,攻守双方争夺非常激烈。在比赛过程中。每个进攻者都会遇到对手的积极防守,因此可以说防守队员是五个“活的障碍”,进攻队员要想获得进攻活动的成功,就必须设法越过这些障碍。防守者无论对无球队员的防守或持球队员的防守,都是对进攻队员进行堵截、夹击、抢断、封盖等行为,都有使进攻者产生视觉障碍,从而影响他们的进攻。产生视觉障碍大致可归纳为几种不同类型。有来自下部的障碍和上部的障碍等。根据运动员身体的结构特征,有手型、手臂型、人身型等不同种类的视觉障碍。这些障碍都不同程
Preface In the basketball competition, both sides offensive and defensive competition is very fierce. During the game. Each attacker encounters an adversary’s active defense, so it can be said that the defender is five “living obstacles” and that the offensive player must try to overcome these obstacles in order to gain the success of offensive activities. Defenders no matter the defense of the player without the ball or the defense of the ball handler, all of them intercept, attack, steal and block the offensive players. All of them cause visual hindrance to the attacker and thus affect their offensive. Visual disorders can be broadly categorized into several different types. There are obstacles from the lower and upper obstacles. According to the structural characteristics of the athlete’s body, there are hand, arm, body type and other different types of visual impairment. These obstacles are different courses