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Kinetic comparative analysis of tennis backhand stroke for interdisciplinary convergence research

학제간 융합연구를 위한 테니스 백핸드 스트로크 동작의 운동역학적 비교 분석

  • Cha, Jung-Hoon (Dept. of Community Sport, Korea National Sport University)
  • Received : 2015.05.11
  • Accepted : 2015.07.20
  • Published : 2015.07.28

Abstract

This study which was conducted on male tennis player on one hand(OH) & two hand(TH) backhand stroke and how both motion differed on low extremity movement with each feature analyzed in detail, the result as follow. The motion of TH based on resultant velocity, appeared to be a higher than OH, which was important variable in determining the ball speed. Contrary to TH where the player minimized the motion in the lower body and finalized a stroke through the turn of the trunk as if sticking the ball closed to the body, OH was carried out such that the player appeared to chase the ball. Whereas in OH, the knee joint extension moment was not found to be larger than TH, the opposite result came out for abduction moment and internal rotation moment. In the case of hip joint, consisted of extension, abduction and internal rotation moment, the outcome emerged to be greater for TH with conspicuous difference in abduction moment. Flection moment for TH overwhelmed in TH though both adduction and external rotation moment brought about similar outcome for both strokes.

본 연구는 테니스 한손과 양손 백핸드 스트로크 동작에서 하지관절 움직임의 차이를 확인하여 유형별 특성을 밝히는데 그 목적이 있으며 그 결과는 다음과 같다. 볼의 속도를 결정하는 중요한 요인인 라켓헤드의 합성 속도는 양손 백핸드 스트로크 동작이 한손보다 빠른 속도를 나타냈다. 양손 백핸드 스트로크는 하체의 움직임을 최소화시키고 몸통 회전을 통한 스트로크를 하는 반면 한손 백핸드 스트로크는 몸통을 이용한 스트로크를 하기 보다는 공을 쫓아가듯이 스트로크 하는 것으로 나타났다. 슬관절의 신전모멘트는 한손 백핸드 스트로크가 큰 것으로 나타났지만, 내번모멘트와 회내모멘트 그리고 굴곡모멘트는 양손 스트로크에서 크게 나타났다. 고관절의 경우 신전, 내번, 회내 모멘트가 양손 백핸드 스트로크가 한손 보다 모두 큰 것으로 나타났는데 특히 내번모멘트의 경우 큰 차이를 나타난 반면, 외번모멘트는 한손 백핸드 스트로크가 큰 것으로 나타났다.

Keywords

References

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