테니스 양손 백핸드의 운동학적 분석 = Kinematic Analysis of Two-Handed Backhand in Tennis

다국어 초록 (Multilingual Abstract)

The purpose of this study was to identify the shot types of two-handed backhand, the merits and demerits of the types an dynamical causes of variations, the motions of five women tennis players were analyzed through three-dimensional video analysis system. With the results of the analysis, the following have been found:
First, two-handed backhand has many elements necessary for offensive tennis play, makes it easy to have a good command of topspins or change balls without being pushed away by the opponent, and has many advantages for responding to grip changes or high-bouncing balls.
Second, the shot types of two-handed backhand can be categorized into tringle shot type and pentagon shot type according to the forms of arms or the ways of grip-holding in impact. Tringle shot type, in which the right hand is near backhand eastern grip and elbow is stretched, shows less flexibility but more stability than pentagon shot type in which the elbow is bended.
Third, all of the players who participated in this test used pentagon shot type and showed average increase of 20.6 centimeters in one frame from immediately before impact to immediately after impact.