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通过三维高速摄影,对优秀武术套路运动员旋风脚转体720°接马步动作进行了分析。结果发现,在助跑阶段不是助跑速度越快越好;在起跳阶段的缓冲时段,左膝角屈膝幅度、身体重心的下降值和重心水平速度的下降值呈显著性相关;在起跳阶段的前蹬伸时段,右腿着地时脚掌内扣、及时快速蹬伸,几乎没有做退让性动作,同时左腿的加速蹬伸、左臂快速摆动的协调配合是关键技术;在起跳阶段的后蹬伸时段,右腿蹬伸的幅度更大,两腿及上肢协调的“蹬摆结合”至关重要。右脚有效制动,可增大人体腾起角度;在腾空阶段,里合击响腿时刻均在人体重心上升时段,接近人体重心最高点。里合击响腿完成后,需及时双臂合抱、双腿伸直使人体尽量成一“直棍”;落地成稳固马步动作关键在于空中转体完成后尽快伸展肢体,增大人体转动惯量。
Through the three-dimensional high-speed photography, the elite Wushu routine athletes swivel foot swivel 720 ° then horseback action was analyzed. The results showed that the run-up speed was not as fast as possible during the run-up phase. During the take-off phase, there was a significant correlation between the amplitude of knee flexion, the decrease of body center of gravity and the decrease of the center-of-gravity speed. Stretching time, the right leg withhold the ground when the deduction buckle, rapid rapid stretch, almost no compromise, while the left leg acceleration pedal stretch, the rapid coordination of the left arm is the key technology in the take-off stage after the stretch stage , Right leg stretch greater extent, legs and upper body coordination “pedal swing combination ” is crucial. The effective braking of the right foot, can increase the human body angle; in the vacated phase, the combo ring all the time in the human body center of gravity rise period, close to the highest point of the human body center of gravity. In the ring after the completion of rivalry, the need to promptly arms folded, legs straight to make the human body as much as possible into a “straight stick ”; landing into a solid horse step action is the air swivel body extension as soon as possible after completion of the body to increase the body’s moment of inertia .