Department of Mathematics, Faculty of Applied Science and Technology, University of Tun Hussein Onn (UTHM), Batu Pahat, Malaysia.
Centre for Applied Biomechanics, Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.
Sports Biomech. 2022 Oct;21(9):1065-1081. doi: 10.1080/14763141.2020.1726995. Epub 2020 Mar 6.
Service is assumed important in table tennis because an effective service may allow the serving player to control over the game; hence, the aim of this study was to determine the contribution of arm segment rotations towards ball impact during forehand service. Sixteen shake-hand grip collegiate table tennis athletes had participated in the study. It was revealed that by increasing the radial deviation angular velocity will increase the ball and racket velocities during drop shot service. Furthermore, it was revealed that increasing the wrist palmar flexion and radial deviation will enhance the racket velocity at impact during long shot service. However, it was recommended to the players not to concern on racket speed and arm segment rotations during contact phase as it could not accelerate the ball at impact during long shot service. Although it was the same forehand service, different length of flight ball lead to different contributions of arm segment rotations towards ball impact. The present findings highlight several better postures to increase racket and ball speed at impact during forehand long shot and drop shot services among advanced and intermediate players. Other ranked players may find this study useful as a fundamental understanding on kinematics serving arm.
服务在乒乓球中很重要，因为有效的发球可能使发球方控制比赛；因此，本研究的目的是确定在正手发球时手臂段旋转对球撞击的贡献。16 名横握拍大学生乒乓球运动员参加了这项研究。研究结果表明，在下手发球时，增加桡骨偏转角速度会增加球和球拍的速度。此外，研究还表明，在发长球时，增加手腕掌屈和桡骨偏转角会增加击球时的球拍速度。然而，建议运动员在接触阶段不要关注球拍速度和手臂段旋转，因为这不能在发长球时提高球在撞击时的速度。尽管这是相同的正手发球，但不同的飞行球长度导致手臂段旋转对球撞击的贡献不同。本研究结果强调了在高级和中级运动员中，在正手长球和下手球发球时，增加击球时球拍和球速的几种更好的姿势。其他排名较低的运动员可能会发现这项研究对他们理解发球手臂的运动学很有用。
