肖俊峰双杠向后大回环转体180°动作技术的运动学分析

Kinematic Analysis of Back Giant Swing with 1/2 Turn on Parallel Bars Performed by Xiao Zunfeng

对肖俊峰完成双杠向后大回球转体180°动作进行了全面系统的分析，发现早伸展、晚下沉、落底沉实是该动作下摆阶段的关键技术所在。上摆阶段向后领臂保持较小的肩角与随后快速有力的振肩动作，两者在时空上的合理配合是该阶段的技术关键，同时也是完成该动作的主要技术特色。

The study made a thorough kinematic analysis of back giant swing with 1/2 turn on parallel bars perforrned by Xiao Zunfeng. It was found that during the stage of swinging downward, the key techniques lied in early stretching, delayed falling and extending the body completely in the vertical position. During the stage of swinging upward, the leading arm kept smaller shoulder angle, and then shoulders rapidly kept steady. Co-ordination of the two techniques in time and space was the key of the stage of swinging upward.