什么是跳传？为什么跳传如此重要？（二）

译文：什么是跳转传球？跳跃传球是指在空中传球的动作。

这里的主要行为需要“视力敏锐”和关键思考能力。本质上，当观察一个“接地”的静态物体时，视觉系统需要激活视网膜中称为光感受器的特殊细胞，这些细胞在眼睛解剖学中被识别为视杆细胞和视锥细胞。以一种非常独特的方式，视杆和视锥细胞负责处理来自环境的信息并将信息发送到大脑，但是，当观察地面上的二传手时，拦网者可以“看到”更多并阅读有关何时的“线索”，传球将在哪里以及如何进行，而如果二传手在空中，注意力的焦点就会消散，并且很难预测球将被传递到哪里。换句话说，从地面传球是可以预测的，而跳跃传球是不可预测的。这也是跳跃传球很重要的主要原因之一。

进攻在每项运动中都很重要，但在排球中，拦网者代表了一种非常有效的防线，可以抵消进攻。因此，为了压制拦网体系，二传手必须欺骗拦网者，或者至少让他们最好的击球手面对较弱的拦网者。

原文：

What is jump setting? Jump setting is the action to set the volleyball while in the air.

The main act here requires “visual acuity” and critical thinking abilities. In essence, when looking at a static object “that is grounded” demands from the visual system the activation of specialized cells in the retina called photoceptors identified in the eye anatomy as rods and cones.

In a very distinctive way, rods and cones are responsible for processing the information from the environment and sending the message to the brain, however, when observing the setter on the ground blockers can "see" much more and read "cues" about when, where and how the set will be performed, whereas if the setter is in the air the focus of attention dissipates and it is much harder to predict where the ball will be delivered. In other words, setting from the ground can be predictable and jump setting is more unpredictable. This is one of the main reasons why jump setting is important.

Attacking is important in every sport but in volleyball, blockers represent a very effective line of defense that can neutralize the offense. Therefore, to overcome the blocking system setters must deceive the blockers or at least perform sets to their best hitters facing the weaker blockers.

文章来源：https://sportsedtv.com/blog/what-is-jump-setting-volleyball