펜싱 런지 동작에서 주동다리와 비 주동다리의 운동역학적 특성
Kinetic Characteristics of Dominant and Non-Dominant Legin Fencing Lunge
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본 연구의 목적은 스포츠 영역에서 순간적인 신체의 이동 방법으로 많이 활용되는 런지 동작의 수행력에 미치는 요인을 근전도 분석이 포함된 운동역학적 분석을 통하여 규명하는 것이다. 숙련된 14명의 펜싱 선수를 대상으로 피험자가 제자리에서 최대한 멀리 나아갈 수 있는 킥 런지를 수행하게 하고 이를 3차원 동작분석기와 근전도 시스템을 적용하여 분석하였다. 킥 런지의 사전 동작이 포함된 동작과 그렇지 않은 동작을 구분하였고 이를 주동다리와 비 주동다리에서 모두 실시하였다. 이 연구의 결론은 다음과 같다. 사전 동작이 포함된 런지에서 보다 높은 수행력을 보였다. 또한 숙련도가 높아질수록 런지의 길이가 길어지는데 여기서 오는 충격량을 제어하기 위한 기전으로 운동 수행 시간을 단축하는 전략적 기전이 사용 되는 것으로 보인다. 이와 더불어 주동다리의 동작에서 모멘트와 파워 등의 역학적 변인의 차이가 나타났는데 이는 근육을 동원하는 유기적 능력의 차이에서 기인하는 것으로 보인다.
Abstract
The purpose of this research is to investigate the factors affecting the performance capability of lunge movements by performing lunge movements which are commonly used as a method of instant physical movement in sports with a kinetic analysis including an EMG analysis. This research targeted 14 skilled fencers and made the subjects perform kick-lunges which allow them to go farthest from their positions and performed an analysis on such, applying a 3D motion analysis system and an EMG system. The subjects performed kick-lunges in two movements; one with a preliminary movement and the other without it and those are performed with both dominant leg and non-dominant leg. The result of this research is as follows. The lunges with a preliminary movement showed higher performance capability than those without it. Furthermore, as the level of skills gets higher, the length of lunges gets longer, and it seemed that a tactical mechanism shortening exercise performance times was used as a mechanism to control the impulse coming from such lengthened lunges. In addition, a difference appeared in mechanical factors such as moment and power in a dominant leg movement and it seemed to result from a difference in an functional capability using muscles.
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