Trunk rotation torques through the hip joints during the one- and two-handed backhand tennis strokes
Trunk rotation torques through the hip joints during the one- and two-handed backhand tennis strokes
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DOI：
10.1080/02640410400021609
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发表时间：
2005-08-01
影响因子：
3.4
通讯作者：
Kojima, T
中科院分区：
文献类型：
--
作者：
Akutagawa, S;Kojima, T
本研究的目的是从运动学的角度比较网球单手和双手反手击球时，下肢在躯干旋转中的作用。14名男大学生网球运动员被招募为参与者，其中7人倾向于单手网球，7人倾向于双手技术。用两个高速电影摄像机拍摄每个反手划水动作，并用两个测力台分别测量足部的地面反作用力，确定髋关节、膝关节和踝关节的关节力矩和关节反作用力。两种击球的髋关节力矩在骨盆开始向前旋转到球拍开始向前移动的阶段有显著差异。躯干旋转时，单手反手选手前腿关节力矩较大，双手反手选手后腿关节力矩较大。在后一次划水中，髋关节大力矩的用力与先前报道的正手划水中的大髋关节力矩相当。
The aim of the present study was to compare kinetically the roles of the lower extremities in generating trunk rotation in the tennis one-handed and two-handed backhand strokes. Fourteen male collegiate tennis players, seven with a preference for the one- and seven with a preference for the two-handed technique, were recruited as participants. The motion of each backhand stroke was filmed using two high-speed cine-cameras, and the ground reaction forces on the feet were measured separately using two force platforms to determine the joint moments and joint reaction forces at the hip, knee and ankle joints. A significant difference in hip joint moments between the two types of stroke was found in the phase from the start of forward rotation of the pelvis to the start of racket forward movement. For trunk rotation, the one-handed backhand players exerted a large joint moment in the front leg, whereas the two-handed backhand players exerted a large joint moment in the back leg. The exertion of a large hip joint moment in the latter stroke was comparable with the exertion in a forehand stroke reported previously.