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김의환,이요열,김성섭,권문석,김성호 한국운동역학회 2003 한국운동역학회지 Vol.13 No.1
Kim, E-H · Lee , Y-Y · Kim, S-S· Kwon, M-S · Kim, S-H. The kinematical Analysis of the Overhead Kick on Soccer. Korean Journal of Sport Biomechanics. Vol. 13, No. 1,pp. 155-171. The purpose of this study was to analyze the kinematic variables of over head Kick(OHK) in soccer with three dimensional analysis technique and show the kinematic characteristics of it. The 7 subjects were university football player who have been playing football more than 7 years. The OHK was filmed on 16mm video camera(30frame/sec.) kinematic variables were temporal, postures, and COG(center of gravity). The mean values and the standard deviation for each variables were obtained and used as basic factors for examining characteristics of OHK. the results of this analysis were as follows : Temporal variables : The total time elapsed(TE) of OHK was0.94~1.14sec., the 1st phase was 0.35sec., 2nd phase was 0.46sec., and 3rd phase was 0.22sec.. Posture variables : When subjects performed OHK at the impact event, the ankle and knee angle of kicking foot were more extend than supporting foot. but the hip angle of supporting foot were more extend than kicking foot. Moving distance of the center of mass of the both foot : When subject performed OHK at the impact event, the range of distance on mediolateral direction aspect into right · left shoulder line, anteroposterior direction aspect was 20.9±10.5cm, vertical direction aspect was 92.3±19.9cm. Angular velocity : the faster angular velocity of knee · ankle on the kicking foot grew form jump position to landing position, the faster velocity of ball became. C. O. G. variables : When subject performed OHK at the impact event, upper part of the body was getting lower, lower part of the body was getting higher.
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골프 스윙시 어드레스부터 백스윙탑까지의 소요시간에 대한 역학적 분석
백병주,이기천,이요열 연세대학교 체육연구소 2002 체육연구논문집 Vol.9 No.1
본 연구의 목적은 골프스윙시 어드레스부터 백스윙 탑까지의 운동학적 분석을 하는데 있다. 피험자로는 7년의 경력과 핸티캡 3의 대학 골퍼 5명으로 하였다. 실험은 2대의 16mm 고속카메라(photosonic co.)를 사용하였으며, 이때 촬영속도는 300frame/sec로 하였다. 자료분석은 3차원 영상분석하였으며, 프로그램은 KWON3D를 사용하였으며, 다음과 같은 결론을 얻었다. 어드레스에서 백스윙 탑까지의 소요시간은 1.12초, 임팩트까지는 1.38초, 그리고 백스윙 탑에서 임팩트까지의 소요시간은 0.26초로 나타났다. 국면별 누적시간은 제 1국면이 0.47초(31.77%), 2국면이 1.12초(77.08%), 3국면이 1.38초(96.03%) 그리고 4국면이 1.44초(100%)로 나타났다. The purpose of this study was to analyze kinematic to top of back swing from address in golf swing. The samples of this study were five university golfers who had 7 years career, 3 handicap. The experiment of this study was used two 16mm high speed cameras (Photosonic co.) its speed was 300frame/sec. Data analysis of this study was three-dimentional cinematography using KWON3D program package. As a conclusions the time elapsed (TE) from address to back swing top was 1.12 sec. and TE to impact was 1.38sec., TE from back swing top to impact was 0.26sec. TE during 1st phase was 0.47sec. (31.77%), TE during 2nd phase was 1.12sec.(77.08%), TE during 3rd phase was 1.38sec. (96.03%) , and TE during 4th phase was 1.44sec.(100%).
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