我国优秀女子铁饼运动员投掷关键技术运动学分析

发布时间：2018-04-27 05:09

本文选题：女子铁饼 + 投掷技术　；参考：《成都体育学院》2017年硕士论文

【摘要】：根据近几年我国田径长投项目中女子铁饼发展态势,顺应中国田径协会“1516计划”、“东京登峰计划”的布局和实施,对应当前我国新一代优秀女子铁饼运动员(陈扬、冯彬、苏欣悦)技术特征,在比赛中应用同步摄像法,通过赛后图片影像分析、数据处理得出三名优秀女子铁饼运动员试掷最好一次的技术参数指标,同时运用运动学、运动训练学及运动生物力学运动技术评价分析方法,对其三人投掷关键技术进行科学客观评定诊断,探究技术差异纰漏,力求把运动员技术个性与技术原理相融合,为奋斗在竞技一线的铁饼教练员、运动员、科研工作者提供可借鉴的方法理论依据,促进提高我国竞技铁饼的实际教训水平。论文采用文献资料法、专家访谈法、摄像法、图像解析法,数理统计法进行研究,其中摄像法是使用两台高清摄像机进行定点同步摄像,采用美国Peak立体标定框架,图像解析法采用运动生物力学录像解析软件3-DSignal Tec进行图像解析,人体模型采用亚洲日本的松井秀治人体模型。研究结论如下:(1)双腿支撑起转阶段,苏欣悦预摆起转站位在中心线偏左位置,有其独特的双支撑起转技术风格,陈扬在起转阶段有高重心、左膝外转不明显等细节问题,冯彬、苏欣悦双支撑阶段具有摆动幅度大特点,三人在预摆起转阶段用时较长。(2)单支撑旋转阶段,陈扬单支撑旋转速度略慢,两脚距离偏大影响单旋转速度;苏欣悦单支撑旋转加速趋势明显,陈扬、苏欣悦单支撑旋转阶段右臂没有很好留在身后,不利于单支撑旋转加速和后面的超越器械。(3)腾空阶段,陈扬腾空高度高,重心起伏大,腾空时间长,旋转节奏有点乱,冯彬腾空阶段左侧身体受单支撑旋转影响过早打开,影响身体向前性,苏欣悦腾空时间、右脚着地速度均快于其他两人,属于后速型加速。(4)衔接阶段,陈扬、苏欣悦非投掷臂伸展打开不够,没有充分形成以左带右的发力形式,冯彬、苏欣悦肩髋角偏小,身体扭转度不够,苏欣悦的左腿非支撑腿落地角度稍大不利于最后用力和左侧支撑。(5)最后用力阶段,苏欣悦最后初始加速阶段身体倾角度较大,上体抬起过早,陈扬、苏欣悦重心高度稍低,左膝关节弯曲角度偏大,影响最后发力的左侧支撑;陈扬出手高度较低,左侧支撑问题明显,冯彬采用跳投出手,出手高度达到1.96m,但没能完全发挥出旋转的快速用力,且出手时机过早导致铁饼出手后飞行偏右;三人的铁饼出手角度基本符合理论要求;三人的铁饼出手初速度与世界优秀运动员相比仍有差距。
[Abstract]:According to the development situation of women discus in the long term project of track and field in China in recent years, the layout and implementation of "1516 Plan" and "Tokyo Dengfeng Plan" of China Athletics Association correspond to the new generation of excellent female discus athletes (Chen Yang, Feng Bin, Chen Yang, Feng Bin). The technical characteristics of Su Xinyue, by using the synchronous camera method in the competition, through the analysis of the pictures and images after the match, the data processing obtained the best technical parameter index of the three excellent women discus athletes, and at the same time, the kinematics was used. The evaluation and analysis method of sports training science and sports biomechanics sports technology, the scientific and objective evaluation and diagnosis of the three key throwing techniques, the exploration of technical differences, and the integration of athletes' technical personality and technical principles, are discussed in this paper. In order to provide theoretical basis for discus coaches, athletes and scientific researchers who struggle in the first line of competition, and to promote the improvement of the actual lesson level of competitive discus in China. In this paper, the methods of literature, expert interview, photography, image analysis and mathematical statistics are used to study. Among them, two high-definition cameras are used for fixed point synchronous camera, and the United States Peak stereoscopic calibration framework is used. The method of image analysis is based on the motion biomechanical video analysis software 3-DSignal Tec, and the human body model is based on the Matsui model of Asia and Japan. The conclusion of the study is as follows: 1) at the stage of leg support and turning, Su Xinyue's pre-swing position is on the left side of the central line, with his unique technical style of double bracing and turning. Chen Yang has a high center of gravity in the starting stage, and the left knee does not turn out obviously. Feng Bin, Su Xinyue's double bracing stage has the characteristics of large swing amplitude. In the stage of pre-swing and rotation, the rotation speed of Chen Yang's single support is a little slow, and the distance between two feet affects the speed of single rotation. The trend of single support rotation acceleration is obvious, Chen Yang, Su Xinyue single support rotation phase right arm is not well left behind, which is not conducive to single support rotation acceleration and the rear transcendental equipment. 3) in the empty stage, Chen Yang's height is high and the center of gravity fluctuates greatly. The flight time was long, and the rotation rhythm was a little chaotic. Feng Bin's left body was prematurely opened under the influence of single support rotation, which affected the forward movement of the body. So Hsin Yuet took off the air time, and the speed of landing of the right foot was faster than that of the other two people. Belonging to the post-speed acceleration stage, Chen Yang, Su Xinyue did not open enough to open the throwing arm, and did not fully form the form of left and right power. Feng Bin, Su Xinyue's shoulder hip angle was small, and the body torsion was not enough. Su Hsin Yuet's left leg unsupported leg landing angle slightly larger than the final force and left support. 5) the final force stage, Suhin Yuet's final initial acceleration phase of the body tilting angle is larger, the upper body is too early, Chen Yang, Su Xinyue center of gravity height is slightly lower, The bending angle of the left knee joint is on the large side, which affects the left support of the final force; Chen Yang's release height is low, and the left side support problem is obvious. Feng Bin used the jumper shot to reach 1.96 m, but he failed to give full play to the rapid force of rotation. And the early timing of discus after the discus flight to the right; three of the discus angle basically in line with the theoretical requirements; the discus of the three of the initial speed and the world's outstanding athletes still have a gap.
【学位授予单位】：成都体育学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G824.2

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