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자료유형
학술저널
저자정보
저널정보
한국사회체육학회 한국사회체육학회지 한국사회체육학회지 제57권 제2호
발행연도
2014.8
수록면
835 - 847 (13page)
DOI
10.51979/KSSLS.2014.08.57.835

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The purpose of this study was to provide basic quantitative data to minimize the impact occurring during forward breakfall by the comparative analysis of kinetic factors through 3D motion analysis and analysis of GRF of the forward breakfall of the martialarts targeting 10 skilled and 10 unskilled subjects. The following are the findings. First, the total time taken for forward breakfall of the martial arts showed 1.53±0.04 s for skilled, and 1.41±0.06 s for unskilled subjects. Second, forward breakfall of the martial arts operation showed significant left and right position of center of mass in P2, P3, and P4. In addition, the unskilled subjects showed larger forward and rearward position in P1, P2, P3, and P4, while the skilled subjects showed larger vertical position in P2. And the unskilled subjects showed faster forward and rear movement of center of mass in P2, P3, and P4, respectively. And unskilled subjects showed faster vertical velocity of center of mass in P2 and P3. Third, as for the upper extremity joint angle during forward breakfall, skilled subjects showed larger right shoulder joint angle in P4, and unskilled subjects showed larger left shoulder joint angle in P2 and P3. Unskilled subjects showed greater elbow joint angle both right and left side in P1 and P3, and skilled subjects demonstrated larger wrist joint angle both right and left side in P1. Fourth, the forward breakfall of the martial arts did not show any difference between left and right side in the GRF, but unskilled subjects proved a significantly greater forward and backward GRF in the secondary point of impact(E3) both right and left sides. The skilled subjects showed a significantly greater vertical GRF in the primary point of impact (E2), and unskilled subjects showed a larger vertical reaction force in the secondary point of impact (E3), respectively.

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