王嘉男跳远技术分析

发布时间：2018-03-23 06:14

本文选题：王嘉男　切入点：跳远　出处：《成都体育学院》2017年硕士论文　论文类型：学位论文

【摘要】：跳远是人体通过一定的距离助跑后获得最大水平速度,并且快速利用起跳产生垂直速度使人体腾空落进沙坑的一项体育运动[1]。本文通过对2015年北京世界田径锦标赛中国男子跳远运动员王嘉男跳远技术中的助跑后十步、起跳的腾起角度、腾空姿势和落地的技术进行研究分析,并与世界优秀男子跳远运动员的技术进行对比,查找相关文献,搜集相关比赛资料,并且通过生物力学对其身体形态、运动素质的机体活动进行研究,同时对王嘉男的跳远技术进行分析,对其腾空姿势技术采取视频截图进行分析,把最后得出的相关数据采用数理统计法,逻辑分析方法进行总结归纳,从中找出王嘉男与世界优秀跳远运动员的差距,并对其不足之处提出相应改进对策,为以后的训练提供良好的理论基础,同时为我国优秀跳远运动员的训练和技术改进提供一定的参考,本研究对王嘉男跳远技术的四个关键环节进行了深入的分析讨论得出以下结果:1.研究对象在助跑中的加速方式、速度水平与世界优秀运动员的水平是有一定差距,并且助跑开始几步的步频较慢,步子大,上体前倾太大,摆臂发力不协调,助跑节奏性不强,特别是倒数第一步着地时候身体重心下降太快,躯干没有伸直,头抬起太慢,双手不协调,2.研究对象在起跳时的缓冲时间、转换时间、蹬伸时间等时间太长,导致起跳角度小,转换效率值低,蹬伸不充分,严重的影响王嘉男的跳远成绩。3.研究对象在落地缓冲时候起跳腿髋关节角度相差大,做功距离不够,摆动腿通过摆动带动同侧的髋向前运动的过程不充分,其次送髋增大摆动腿的摆动幅度不够。4.研究对象起跳腾空时,摆动腿下落后摆幅度小,身体姿势不协调,起跳腿向前伸展不够。5.研究对象在举腿、送髋、收腹、着地时,身体重心支持点协调配合与完成的各技术的时机恰当度不好。6.研究对象在腾空落地时身体严重向左倾斜,身体姿势舒展度不够,重心太向后,手上动作不协调。
[Abstract]:The long jump is when the human body gets the maximum horizontal speed through a certain distance run-up. And a sport in which the take-off produces vertical speed and the human body is emptied into a bunker [1]. In this paper, ten steps after the run-up in the Chinese men's long jump technique in the 2015 Beijing World Athletic Championships, Wang Jiannan, The take-off angle, the takeoff position and the landing technology are studied and analyzed, and compared with the techniques of the world's elite men's long jump athletes, the relevant documents are searched, the relevant competition information is collected, and the body shape is obtained through biomechanics. At the same time, Wang Jiannan's long jump technique is analyzed, video screenshots are taken to analyze his vacationing posture technique, and mathematical statistics are used to obtain the relevant data. The logic analysis method is summarized, from which the gap between Wang Jianan and the world elite long jumpers is found, and the corresponding improvement countermeasures are put forward to provide a good theoretical basis for the later training. At the same time, it provides a certain reference for the training and technical improvement of Chinese elite long jump athletes. This study makes an in-depth analysis and discussion on the four key links of Wang Jianan's long jump technique. The following results are obtained: 1.The acceleration mode of the research object in the run-up. There is a certain gap between the speed level and the level of the world's elite athletes, and the pace of the first few steps of the run-up is slow, the pace is large, the upper body is too large, the arm swing is not in harmony, and the run-up rhythm is not strong. Especially when the center of gravity drops too fast, the torso is not straightened, the head is raised too slowly, and the hands are not in harmony when the first step of the last step hits the ground. 2. The participants' buffer time, transition time, pedal time, etc., during the take-off are too long, resulting in a small take-off angle. The conversion efficiency value is low, the pedal extension is insufficient, the serious influence Wang Jianan's long jump score .3.The research object takes off the leg hip joint angle to differ greatly in the landing buffer time, does the work distance not enough, The swing leg is not enough to drive the hip of the same side forward motion through the swing. Secondly, the swing amplitude of the swing leg is not enough to increase the swing amplitude of the swing leg. 4. When the object of the study is taken off and vacated, the swing amplitude of the swing leg after falling is small, and the body posture is not in harmony. 5. When the subjects raised their legs, sent their hips, gathered their abdomen and landed on the ground, the timing of various techniques coordinated with and completed by the body center of gravity support points was not good enough .6.When the subjects landed in the air, their bodies were seriously inclined to the left. The body posture stretch degree is not enough, the center of gravity is too backward, the hand movement is not coordinated.
【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】：G823.3

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