我国女子链球项目备战2016年里约奥运会重点队员投掷技术的研究

发布时间：2018-03-06 21:05

本文选题：女子链球项目　切入点：备战奥运会　出处：《北京体育大学学报》2017年11期 　论文类型：期刊论文

【摘要】：女子链球是我国田径的优势项目,为了进一步探索项目的内在规律和对运动员技术完善提供帮助,推动该项目在我国的可持续发展。通过运动生物力学拍摄和三维解析的方法,对我国2名最优秀女子链球选手的投掷技术进行研究,发现:我国2名选手普遍存在对器械持续加速能力偏弱现象,特别是第4圈和最后用力阶段,整个旋转中第4圈技术有待进一步完善(都存在球体力量向身体方向转移的拉球、左肩回撤现象)。同时存在器械斜面角偏大以及右腿上腿不积极现象,右脚有延迟着地和速度慢的现象。其中王峥旋转技术中第3圈存在的问题比较大,双支撑阶段左膝关节伸展幅度过大,肩带多余肌肉参与用力,上肢的放松和舒展程度较差,造成器械运行轨迹缩短,以上是王峥技术改进和完善的方向。张文秀的技术主要问题是进旋转速度慢、第4圈向身体方向拉球等问题,造成第4圈双支撑阶段加速距离的缩短,以上问题是张文秀技术完善的方向。通过对比研究发现我国运动员的优势和存在问题,为技术运动员改进和提高运动成绩提供帮助和参考。
[Abstract]:Women's chain ball is an advantage item in track and field of our country. In order to further explore the inherent rules of the event and provide help for the improvement of athletes' technology, and to promote the sustainable development of the project in China, the method of sports biomechanical photography and three-dimensional analysis is adopted. This paper studies the throwing techniques of two of the best female sprocket players in China. It is found that the two players in our country are generally weak in their ability to continuously accelerate the instruments, especially in the fourth and final exertion stages. In the whole rotation, the technique of the fourth circle needs to be further improved (there is a ball pulling from the ball force to the body, the left shoulder is retreating, and there is a phenomenon that the inclined angle of the instrument is too large and the upper leg of the right leg is not active. The right foot has the phenomenon of delayed landing and slow speed. In the third circle of Wang Zheng's rotation technique, the problems existed in the third lap are relatively large, the range of extension of the left knee joint is too large in the double support stage, the excess muscles of the shoulder band take part in the force, and the degree of relaxation and extension of the upper limb is poor. This is the direction in which Wang Zheng's technology has been improved and perfected. Zhang Wenxiu's main technical problems are the slow speed of entry and rotation, the drawing of the ball to the body in the fourth lap, resulting in the shortening of the acceleration distance in the fourth double support stage. The above problems are the direction of Zhang Wenxiu's technical perfection. Through comparative study, the author finds out the advantages and existing problems of Chinese athletes, and provides help and reference for technical athletes to improve and improve their sports performance.
【作者单位】：西安体育学院田径教研室;
【基金】：国家体育总局女子链球项目备战2016年奥运会攻关课题(2016HT085)
【分类号】：G824.4

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