通过对“肩的伸缩”在运动解剖和肌肉活动特点的分析,说明完成器械体操动作,提高动作质量,发展难新动作,都离不开“肩的伸缩”。“肩的伸缩”是器械体操动作中的一个技术基础。 Through the analysis of the characteristics of “anatomy and muscle activity” of “shoulder scalability”, it shows that the accomplishment of the gymnastics equipment movement, the improvement of the movement quality and the development of hard new movements are inseparable from the scalability of the shoulder. “Stretch Shoulder ” is a technical basis for the gymnastics equipment.