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자료유형
학술저널
저자정보
저널정보
한국사회체육학회 한국사회체육학회지 한국사회체육학회지 제16권
발행연도
2001.11
수록면
199 - 209 (11page)

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초록· 키워드

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The purpose of this study is to present descriptions of head hitting motion of Kumdo. In this study, We carried out kinematic analysis on head hitting motion of three Kumdo players for establishing the technique guidance to novice. After calculating angles of lower and upper extremities, angular velocities and angular accelerations, following results could be made. 1. The total elapsed time of head hitting motion was 0.67±0.12 seconds, the elapsed time of RP↔BS phase was 0.37±0.03 seconds and BS↔IP phase was 0.29±0.09 seconds. Therefore, the progressing time of RP↔BS phase took more than those of the other phase. 2. In RP phase, the angle of left elbow joint was 147.14±4.30, and left shoulder joint was flexion. In BS phase, the angle of left wrist joint was 81.10±5.74˚, that of left shoulder joint was 111.36±16.16˚. At the impact, the left wrist joint showed the highest extension. Furthermore, the angle of right trunk joint showed the highest flexion during BS phase. In the knee angle, it was 145.24±24.76˚ in BS phase and was 128.43±19.17° in IP phase. In the vertical displacement of the right foot, it was 13.8±2.75cm, which is the highest value in BS↔IP phase. so it was concluded that a effective stroke was by fast moving of a lower joint, flexion and extension in the upper joint. 3. In the angle velocity of the expert, it is occurred that the shoulder joint was 7.76±1.19 rad/s in BS phase, the elbow joint was 6.30±2.19 rad/s in BS↔IP phase and wrist joint was 18.15±0.46 rad/s in IP phase. Also, The knee joint angular velocity was -8.49±0.18 rad/s, which was the lowest velocity in BS phase and increased up to 4.28 ± 1.05 rad/s in IP phase. In the angular acceleration, it is occured that the left wrist joint was 365.21±114.31 rad/s^2, which was the highest angular acceleration in BS↔IP phase but was slow down in IP phase. At the impact, the left shoulder joint showed the highest angular acceleration.

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