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运用三维实验测量为主的方法,对我国优秀竞技健美操运动员转体180度屈体跳再转体180度成俯撑C477的运动学分析。研究表明:腾空高度与起跳瞬时的垂直速度和腾空时间成正比例关系,高重心和爆发力强是大幅度完成C477难度动作的前提;起跳阶段,运动员下肢关节踝关节缓冲幅度最大,髋关节最小;踝、膝关节角度分别在40°～50°、30°～45°时能为后续蹬伸动作的完成储备较大的弹性势能;腾空阶段,水平越高的运动员,其髋、膝、踝关节角度越大,身体伸展越充分。落地缓冲阶段,运动员肘关节屈角为90°～110°、踝关节缓冲角度为25°～40°时,完成落地效果最佳。
Using the method of three-dimensional experimental measurement, the kinematics analysis of the C477 knee-high supporter of 180 ° flexion and 180 ° rotation of the elite athletic calisthenics in our country is carried out. The research shows that the height of the vacancy is directly proportional to the vertical speed and the vacating time of the take-off instantaneous. The high center of gravity and explosive power are the prerequisites for completing the C477. The ankle joint of the lower extremity of the athlete has the largest cushioning amplitude and the smallest hip joint. , And knee angles of 40 ° ~ 50 ° and 30 ° ~ 45 °, respectively, can reserve larger elastic potential energy for the follow-up kicking action. In the vacating stage, the higher the level of athletes, the hip, knee and ankle angles The bigger, the more fully the body stretches. Floor buffering stage, the athlete elbow flexion angle of 90 ° ~ 110 °, the ankle cushion angle of 25 ° ~ 40 °, the best to complete the landing.