earticle

영어

The purpose of this study was to evaluate kinematic factors for the upper limbs affecting the record during extending in archery. For this study, 6 archers of Korea National Sport University participated in the experiment. The variables of research were angles and angular velocities of shoulder, elbow joint of pushing and drawing arm. The seven infrared cameras (Qualisys MCU-240) were used to acquire raw data, and the Qualisys track manager (QTM). was used to process data. They were analyzed with Visual-3D for variables. The sampling rate of a camera was 200Hz and the coordinate data were filtered using a fourth-order Butterworth low pass filtering with a cut-off frequency, 6Hz. The results were as follows: First, the smaller angles and angular velocities of the elbow joint for drawing arm got, the higher scores got during an extending phase. Second, the higher abduction and velocity of shoulder joint got, the smaller scores got both extending phases. Third, the correlations both average horizontal angle according to the scores of drawing arm and scores were not different statistically. In conclusion, horizontal elbow angle of drawing arm at the end of extending point affected the scores, most variables were not steady in the 7 point, but other points (10p, 9p) were steady. Continuous and fine extending techniques acquired high scores, but extending techniques by means of only finger or wrist got low scores and made a mistake frequently.

한국어

본 연구는 한국체육대학교 양궁 선수들을 대상으로 익스텐딩 구간의 운동학적 요인이 기록에 미치는 요인을 분 석하기 위하여 숙련된 양궁선수 6명을 선정하여 각각 3발씩 5end 동작을 반복 측정한 사례연구로써 Qualysis사의 적 외선 카메라 ProReflex MCU-240 카메라 7대를 사용하다. 또한 양궁은 세밀하고 미세한 익스텐딩 변화를 측정하기 위하여 적외선 카메라 샘플링 율 (sampling rate)는 200Hz 설정하여 원자료를 획득하였다. 양궁 점수의 10점, 9점과 8점 기록에 미치는 요인들의 산출을 위하여 Visual 3D (C-motion, USA)를 이용하여 측정하였다. 그 결과 익스텐딩 시 푸쉬 암 주관절 각도 및 각속도 변화는 10점과 8점 변화가 큰 것으로 나타났으며 굴곡, 신전 평균 각도, 각속도에서 p=.05 수준에서 통계적으로 유의한 차이가 나타났다. 10점과 9점은 익스텐딩 시 매우 안전적이며 푸쉬 암 견괄절 각도, 각속도는 점수에 영향을 미친다고 생각되며 지속적으로 세밀하게 익스텐딩 기술을 사용하면 경기력 향상에 도움이 될 수 있을 것이라 생각된다.