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- 저자 : 신현무(HyunMooShin) (검색결과 1 건)
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신현무(HyunMooShin),고석곤(SukGonGo),강성철(SungChulKang),고광후(KwangHooKo),김태완(TaeWhanKim) 한국체육학회 2009 한국체육학회지 Vol.48 No.4
The purpose of this study is to examine the kinetical and biomechanical characteristics of two types of double knife-hand body blocking movement and to verify the characteristic differences of the two types. For the experiment, 3D image analysis(Vicon camera 7) and ground reaction force plates(AMTI 2) are used and the subjects are selected from the Korean National Poomse Demonstration Team. The analysis variables are time, velocity, mid-point balance, and ground reaction force. Each variable’s mean and standard deviation is calculated and then a dependent T test is used to analyze the statistical differences between the two types. The results of the analysis are as follows: The Ground Reaction Force(GRF) of type1 is measured higher than that of type2 in the medio-lateral plane for both supporting feet, whereas the GRF of type2 is observed higher than that of type1 in the anteroposterior plane for both supporting feet. The vertical GRF shows that type1 is higher in left supporting foot, but type 2 is higher in right supporting foot. There are statistically significant differences for both supporting feet in the anteroposterior direction(left: p<.037, right: p<.004) and superior-inferior direction (left: p<.016, right: p<.002).
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