지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2004.1
- 수록면
- 2,135 - 2,146 (12page)
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초록· 키워드
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This study carried out a kinematical analysis of four tennis players' serve motions, and drew conclusions as follows. 1. As for service footwork, all the four players preferred the pose of pin-point stance. 2. The width of back swing stance was around one third of their height. 3. All the four players landed first their left foot into the court just after impacting, and jump on impacting was generally high but they had the style of foot-up, in which their first step hardly entered into the court. 4. The forwarding speed of the body center appeared highest just before impacting and lowered slightly just after impacting. 5. The height of toss appeared low in general. 6. According to the moving track of the racket head center, player s1 and s2 used flat serves in which the racket head did not move right or left and player s3 and s4 spin serves in which the racket head moved significantly to right or left. 7. What appeared to play the largest role in speeding the racket head was segmental motion by the inner twist of the upper arm.
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