【摘要】 采用运动学、肌电图学、动力学等学科知识,结合影像解析法,对中国优秀女子三级跳远选手跨步跳缓冲阶段进行动作分析,发现在最大缓冲时刻,支撑腿膝角为139.17°,处于合理的蹬伸范围;在肌电图方面,半腱肌的用力程度始终是最大的,并且臀大肌、腹直肌、胫骨前肌和股内、外侧肌在跨步跳的踏跳过程中都起着非常重要的作用。更多还原

【Abstract】 Kinesiology,electromyography,dynamics and image analysis are employed in this article to analyze the action in the buffer stage of step jump for Chinese talent female triple jumpers.It is concluded that in the largest buffer moment,the support leg angle is 139.17°,which is within the reasonable extension range;in terms of electromyography,the muscle tendon degree of force is the biggest;the gluteus,the rectus abdominis,the tibial muscle,the stocks,and the vastus lateralis all play an important role in the step jump.更多还原