利用重心上升的力量向前上方挥拍反手起下旋球时,为了使拉球具有一定的威胁,要注意以下几个要点:挥拍的同时,两腿蹬地,将身体重心迅速上提;要利用好腹肌、背肌的力量,将爆发力充分释放。在击球时,腿部从弯曲状态迅速伸直,重心在上升的过程产生了足够大的前冲力,此时顺势向前上方挥拍可以使动作更加干脆有力,增加反手拉球的威胁。 Use the power of the center of gravity to rise upward swing backhand swing backhand ball, in order to make the ball has a certain threat, pay attention to the following points: swing at the same time, legs stepped on, the body quickly lift the center of gravity; To make good use of abdominal muscles, back muscles, the explosive will be fully released. When hitting the ball, the leg is rapidly straightened from the bent state, and the center of gravity produces a large enough forward momentum during the ascent. At this moment, swinging forward and upward can make the action more forceful and increase the threat of backhand pull.