总结:什么是012里的走一步
JR都知道,012里,一共走了2步。
解释1:
单单单的腾空012,可以用步脚来解释。即:
第一步为:0步脚的落地+离地
第二步为:1步脚的落地+离地。
最后的起跳脚为2步脚。
解释2:
对于单单单的非腾空012里,可以用步距来解释:
第一步为:0步脚落地+合球+1步脚落地(步距形成)+0步脚离地(步距消失);
第二步为:1步脚落地+2步脚落地(步距形成)+1步脚离地(步距消失);
最后的起跳脚为2步脚。
解释3:
根据NBA2021篮球规则原文:
The first step occurs when a foot, or both feet, touch the floor after gaining control of the ball.
合球后,一脚或双脚同时接触地面时为发生Occurs第一步,
The second step occurs after the first step when the other foot touches the floor, or both feet touch the floor simultaneously.
在第一步之后,另外一脚或双脚同时接触地面时,则为发生occurs第二步。
有步脚的发生,当然就有步脚的消失。触地为发生,离地为消失。
解释4:
在NBA或FIBA的篮球规则中,都没有对012里的什么是走一步给出明文规定。但仔细研究,发现NBA篮球规则里,其实还是给出了什么是012里的“走一步”!
这个定义隐藏在NBA规则版本的更替中。
在NBA2019篮球规则原文中:
A player who receives the ball while he is progressing or upon completion of a dribble, may take two steps in coming to a stop, passing or shooting the ball. A player who receives the ball while he is progressing must release the ball to start his dribble before his second step.
精简一下:
A player who receives the ball while he is progressing or upon completion of a dribble, . A player who receives the ball while he is progressing must release the ball to start his dribble before his second step.
在NBA2021篮球规则中:
A player who gathers the ball while progressing may take (1) two steps in coming to a stop, passing or shooting the ball, or (2) if he has not yet dribbled, one step prior to releasing the ball.
这话精简一下,变成:A player who gathers the ball while progressing may (2) if he has not yet dribbled, one step prior to releasing the ball.
以上的两句话,规定的都是接球以后,脚步和开始运球之间的关系。
举个例子:空中接球,随后俩脚先后落地为1脚和2脚,是否还能接着运球?
但按照2019的规定,不可以。按照2021的规定,可以。
NBA-2021规则解释为:
A:接球时0脚在地,可以走一步再运球,即:0步脚落地+接球+1脚落地+0脚离地(未落地形成2步脚之前)+球离手
B:空中接球,可以走一步再运球,即:接球+1脚落地+2脚落地+1脚离地(未落地形成3步脚之前)+球离手
NBA-2019 规则中,只规定了A情形,未对B情形作出规定。
以上这4种“012里的走一步”的理论解释,本质是完全一致的。并且完美通过实践检验。
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