遼寧省不同運動等級男子籃球運動員三分球跳起投籃的運動生物力學(xué)個體分析
[Abstract]:Basketball, as an organizational form of offensive and defensive confrontation or entertainment performance under certain rules and with its special forms, methods and means, has evolved into a sport of modern competitive sports and mass sports. The development of modern basketball has become one of the most attention and favorite sports all over the world. "accurate shooting", as the core and purpose of offensive and defensive confrontation in modern basketball, is the first element of winning, among which, the most important and common means of scoring is jump shooting. In view of the fact that most of the current studies on jumping and shooting techniques are combined with cohesive movements, and orientation studies are directed at only one of the kinematics or muscle biomechanical indicators, And the two indexes were analyzed and compared synchronously, so this study combines kinematics experiment with electromyoelectric experiment of human muscle surface, to the members of the Chinese national men's basketball team. The members of Liaoning men's basketball team and the students of men's basketball specialized class in Shenyang Institute of physical Education, etc., were measured and analyzed by experiments. In order to compare the difference between the jumper and the jumper, the length of time, the change of speed and the angle of every joint of the male basketball player in the jumping shooting technique are further analyzed, and the results are as follows: (1) the change of the length of time, the change of the speed, the change of the angle of the joint. In order to study the characteristics and essential laws of motion biomechanics of this technique, the integral myoelectric value of each muscle and the characteristics of muscle activation time are studied. According to the experimental data, combined with the analysis of video and related theories, the following conclusions are drawn: in the buffer stage of holding the ball, Sun Kaihang's adjustment time is too long after the center of gravity drops. The problems of forearm lifting and exertion prematurely and the change range of hip joint are small, which results in the time-consuming and incongruity of the overall technical movement. Lu Zhijun's lower limb joint buffer amplitude is too small, resulting in subsequent takeoff when weak strength. At the same time, there is a gap between 4 low level athletes and 2 high level athletes. In the process of jumping on the ground, the ability of high level athletes is better than that of low level athletes in the process of upper limb swing. Li Jinyang appeared the elbow joint flexion degree is too big, and the body posture inclines, causes the final release angle to be too big. In the stage of emptying, Guo Allen's shot time is much smaller than that of other athletes, and there is little difference between the total time of each player's shooting time and the total time of the empty stage. Liu Zhixuan's angle of action is closest to the best angle, and the overall speed of high-level athletes is better than that of low-level athletes. The control ability of low-level athletes is worse than that of high-level athletes.
【學(xué)位授予單位】:沈陽體育學(xué)院
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:G841
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