对技巧女三膝抛720°旋特征的研究

• 作 者: 董汉英 刘建智 周里
• 机 构: 西安体育学院
• 出 处: 西安体育学院学报
• 发表日期: 1994年01期
• 关键词: 支撑反作用力 下面人 蹬伸阶段 生物力学特征 上面人 运动学特征 关节运动 最大速度 摆臂 膝角

技巧女子３人项目的配合技术是上面人完成高难空翻动作的关键部分．在蹬伸时运动学的特征上，下面人关节运动的时序是先展髋后伸膝伸踝，两臂由慢到快上抛尖子（即上面人）．尖子蹬伸用力时光伸髋伸膝后伸踝关节，蹬伸的时间比下面人较晚．由动力学特征得知，协同配合的越好，上下面人蹬伸时速度越快，支撑反作用力越大．因而，尖子所获得的腾空高度越高．

Skill Women’s 3-person project’s technical cooperation is a key part of the above-mentioned accomplishments. In kicking kinematics, the timing of the following articulation is the first to stretch the ankle of the hip and the second to the top of the hip (ie, the person above). Stretch aktong stretch time stretch hip extension ankle extension knee, pedal stretching time later than the following people. It is known from the kinetic characteristics that the better the synergistic cooperation is, the faster the upper and lower people stretch their knees and the larger the reaction force is. Thus, the airspace gets the higher the altitude.