杨亚红“跳起转体90°~180°直体后空翻转体720°”动作的运动学分析
양아홍“도기전체90°~180°직체후공번전체720°”동작적운동학분석
Kinematical Analysis of Chinese Elite Vaulter YANG Ya-hong's Movement of Handspring with 90~180ordm-Layout Back Double Twists