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.
초록· 키워드
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The purpose of this study was to examine differences between players who bend the left elbow and those who stretch it during the forward swing from BST to BC in a 2-handed backhand stroke among outstanding high school tennis players, and to assess the detailed 3D rotational kinematic characteristics of the shoulder and the hip. Statistically significant differences were observed between groups in the longitudinal axis rotation angle of the shoulder and the angle between the shoulder and the arm at BST, and in the side to side movement of the shoulder, the up and down movement of the hip, the side tilt angular velocity of the shoulder, the side tilt angular velocity of the hip, and the front tilt angular velocity of the hip at BC. The difference in the longitudinal axis rotation angle of the shoulder between the 2 groups suggests a difference in the flexibility of the joint in the shoulder arm racquet system. The longitudinal axis rotation angular velocity of the shoulder reached its peak at 75 % of the duration of the analyzed segment and then decreased little by little until BC. This time is considered the stage for increasing the angular velocity of the upper arm, the forearm, the hand and then the racquet, which are more distal segments than the shoulder.
목차
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참고문헌 (21)
참고문헌 신청
Craig, J. J. / 2005 / Introduction to Robotics: Mechanics and Control 3rd ed. Pearson Prentice Hall / Upper Saddle River, NJ :135~164
Elliott, B / 1989 / A biomechanical comparison of the multisegment and single unit topspin forehand drives in tennis / International Journal of Sport Biomechanics 5:350~364
Elliott, B / 1996 / The role of the upper limb segment rotations in the development of racket-head speed in the squash forehand / Journal of Sports Science 14:159~165
Elliott, B / 1997 / The influence of grip position on upper limb contributions to racket head velocity in a tennis forehand / Journal of Applied Biomechanics 14:173~196
Grabiner, M. / 1983 / Resultant ball velocity as a function of grip firmness during off-center impacts in tennis / Medicine and Science in Sports and Exercise 15(6):542~544
Elliott, B / 1989 / A biomechanical comparison of the multisegment and single unit topspin forehand drives in tennis / International Journal of Sport Biomechanics 5:350~364
Elliott, B / 1996 / The role of the upper limb segment rotations in the development of racket-head speed in the squash forehand / Journal of Sports Science 14:159~165
Elliott, B / 1997 / The influence of grip position on upper limb contributions to racket head velocity in a tennis forehand / Journal of Applied Biomechanics 14:173~196
Grabiner, M. / 1983 / Resultant ball velocity as a function of grip firmness during off-center impacts in tennis / Medicine and Science in Sports and Exercise 15(6):542~544
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