| 跳远起跳时摆动腿脚踝动作所产生的定型摆腿特点与作用研究 |
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| 引用本文： | 山美娟,李海峰,程致远.跳远起跳时摆动腿脚踝动作所产生的定型摆腿特点与作用研究[J].吉林体育学院学报,2010,26(2):69-70. |
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| 作者姓名： | 山美娟 李海峰 程致远 |
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| 作者单位： | 青岛农业大学,体育教学部,山东,青岛,266109 |
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| 摘 要： | 通过对挺身式跳远起跳时摆动腿脚踝动作的分析研究发现,挺身式跳远起跳时摆动腿脚尖勾起（踝关节背曲）制动有利于提高身体重心垂直做功的高度,增加向上的垂直速度。跳远起跳时摆动腿脚尖勾起的摆动腿制动更有利于防止腾空时身体的前旋。
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| 关 键 词： | 挺身式跳远 摆动腿起跳 脚尖“勾起” |
The Characteristics and Functions of Ankle Joint Doriflexion of Swinging Leg in the Long Jump Item |
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| Shan Meijuan,Li Haifeng,Cheng Zhiyuan.The Characteristics and Functions of Ankle Joint Doriflexion of Swinging Leg in the Long Jump Item[J].Journal of Jilin Institute of Physical Education,2010,26(2):69-70. |
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| Authors: | Shan Meijuan Li Haifeng Cheng Zhiyuan |
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| Institution: | (P.E.Department of Qingdao Agricultural College,Qingdao,266109,Shandong,China) |
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| Abstract: | By analyzing the skill of anklejoint doriflexion of the swinging leg during the take-off phase of the long jump by using the anatomy and biomechanics of sports,the paper shows that the skill of anklejoint doriflexion of the swinging leg can augment the vertical speed of the center of gravity,and increase the height of the center of gravity,and raise the speed of the swinging leg;in addition that it is in favour of preventing the former spin of the body when it is vacating. |
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| Keywords: | long jump take-off phase of long jump the skill of swinging leg anklejoint-dorsiflexion |
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