라틴댄스 선수들의 차차차 기본동작의 운동학적 분석

Kinematics analysis of Cha Cha Cha basic motion in Latin Dance

The purpose of this study is to provide leaders and athletes with basic data on Latin dance movement through kinematic analysis of basic movement.In this experiment, the subjects set up the control point frame and measured with two high-speed digital cameras within the range that the subjects could fully perform the basic movements of Latin dance.The results of the experiment are as follows. First, As for the X-axis displacement of hip joint, every graph pattern is similar. But displacement of left hip joint of Y.J.W is 1.8m and it of right hip joint is 1.6m in the case of female, and displacement of left hip joint of L.S.Y is 2.3m and it of right hip joint is 2.2m. Second, In the Y-axis displacement of hip joint, the graph pattern of Y.H.S(famale) and L.S.Y(male) is different from other subject, the reason is movement of certer of gravity. Third, The Z-axis displacement of hip joint is little in the everybody, but change of graph pattern is greatly. Fourth, As for each duration of phase time, NO. 1,10phase of stretching and relax are long time, and also NO. 6 phase is long because of preparation posture of reverse direction of next step. This conclusion shows that Result of movement maximum velocity is +0.06m/frame at the NO. 3, 4, 5 phase, and at the NO. 8, 9, 10 phase is -0.06m/frame. Therefore, it is judged that the accurate movement of the center of gravity is the most important factor in improving the completeness of motion in the Latin dance chacha basic motion.