• 한국운동역학회지
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• 제30권1호
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• pp.17-25
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• 2020

Objective: The purpose of this study is to provide a better understanding of long turn mechanism by describing long turns after kinematic analysis and provide skiers and winter sports instructors with data through which they are able to analyze right postures for turns in skiing in a systematic, rational and scientific manner. Method: For this, a mean difference of kinematic variables (the center of gravity (CG) displacement of distance, trajectory, velocity, angle) was verified against a total of 12 skiers (skilled and unskilled, 6 persons each), regarding motions from the up-start to down-end points for long turns. Results: First, concerning the horizontal displacement of CG during a turn in skiing, skilled skiers were positioned on the right side at the upstart and edge-change points at a long turn. There was no difference in anteroposterior and vertical displacements. Second, in terms of CG-trajectory differences, skilled skiers revealed a significant difference during a long turn. Third, regarding skiing velocity, skilled skiers were fast at the edge-change and maximum inclination points in long turns. Fourth, there was no difference in a hip joint in terms of a lower limb joint angle. In a knee joint, a large angle was found at the up-start point among skilled skiers when they made a long turn. Conclusion: In overall, when skilled and unskilled skiers were compared, to make a good turn, it is required to turn according to the radius of turn by reducing weight, concerning the CG displacement. Regarding the CG-trajectory differences, the edge angle should be adjusted via proper inclination angulation. In addition, a skier should be more leaned toward the inside of a turn when they make a long turn. In terms of skiing velocity, it is needed to reduce friction on snow through the edging and pivoting of the radius or turn according to curvature and controlling ski pressure. Regarding a lower limb joint angle, it is important to make an up move by increasing ankle and knee angles instead of keeping the upper body straight during an up motion.

• 한국응용과학기술학회지
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• 제41권1호
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• pp.27-35
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• 2024

본 연구는 2018년부터 2023년까지 약 5년간 2018평창동계올림픽 이후 스노보드와 관련된 국내 KCI 등재지에서 발행된 국내 선행문헌 21편을 연구대상으로 선정하여 특성, 참여형태, 연구분과, 연구방법에 대해 분석한 결과는 다음과 같다. 첫째, 성별에서는 남성 및 남성과 여성을 대상으로 한 논문이 대부분을 차지하였으며 연령은 20~50대까지 다양하게 분포되었다. 피험자 수의 경우 50명 미만의 논문이 대부분을 차지하였다. 둘째, 참여형태에서는 등록선수와 스키장 이용객이 대부분을 차지하였으며 유소년 선수, 지도자, 심사위원 순으로 논문이 형성되었다. 셋째, 연구방법에 대해서는 양적연구와 실험연구가 대부분이었으며 질적연구와 통합연구 순으로 분석되었다. 넷째, 연구분과로는 스포츠 사회학, 운동역학이 주를 이루었으며 스포츠 심리학, 운동생리학, 스포츠 측정평가, 스포츠 경영학, 체육사학 순으로 분석되었다.