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徐寅生同志在1993年年底举办的乒乓球教练员研讨会上,提出了有关板形、弧线以及力量等方面的一些理论问题。他认为,对这些基本技术理论没能充分掌握和恰如其分的运用,已是我们的通病之一。本文将从本期开始,对徐文中所涉及的问题逐一进行回答,供乒乓界的同仁参考。 十一、板形 (一)问:什么是板形?不同板形对击球部位有何影响? 答:板形是指球拍在二维空间中的变化位置。沿额状轴转动,形成板面角度,沿垂直轴转动形成板面方向。 1.板面角度:指板面和台面及其延长线所形成的角度。小于90度,称为前倾;大于90度,称为后仰。
At the seminar for table tennis coaches organized by the end of 1993, Comrade Xu Yinsheng put forward some theoretical issues concerning the aspects of shape, arc and strength. He believes that the failure to fully grasp and appropriately use these basic technical theories has become one of our common problems. This article from the beginning of this issue, one by one to answer the questions Xu Wenzhong, peer table for the reference. Eleven, shape (a) Q: What is the shape? Different shape of the ball on the impact of parts? A: Shape refers to the racket in the two-dimensional space changes position. Rotate along the foreshadowing axis to form the angle of the plate surface and turn along the vertical axis to form the direction of the plate surface. 1. Board angle: the angle between the board surface and the table and its extension line. Less than 90 degrees, known as forward; greater than 90 degrees, called backwards.