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알파인 스키 레이싱 회전종목에서 오픈기문과 헤어핀 기문의 구간별 회전전략
김주년 ( Kim Joonyeon ),윤석훈 ( Yoon Sukhoon ) 한국체육대학교 체육과학연구소 2021 스포츠사이언스 Vol.39 No.1
The purpose of this study was to investigate the kinematic differences between the turning techniques of the hair-pin combination and of the open gate in the alpine ski slalom. Fourteen Korean alpine ski racers were participated in this study. The three-dimensional angles of the ankle, knee, and hip joints of the outer-leg were calculated using 7 inertial measurement units. The skiing duration and the maximum and minimum values of joint angles were analized in the open-gate, previous gate of hair-pin, 1st gate of hair-pin and 2nd gate of hair-pin. There was a significant difference in the skiing duration, and there were significant differences in the minimum flexion, the maximum abduction, the maximum internal rotation angle of the hip joint, and the minimum flexion angle of the knee joint. Based on the results of this study, the movement of the joints was simplified in the order of the open gate, previous gate of hair-pin, the second gates of hairpin, and the first gate of hair-pin.