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采用星钛便携高速摄像系统对运动员进行平面定点拍摄,运用运动生物力学原理和方法,对孟××抓举技术动作进行拍摄和分析膝角、髋角、躯干角、杠铃高度、铃水平速度和铃垂直速度及其过程参数。研究表明:躯干在伸膝提铃和引膝提铃阶段,过早的后仰发力,造成引膝不充分、躯干角在铃速最大时刻过度后仰;抓举动作技术的不稳定如杠铃在达到最高点后距离支撑平面不稳定,水平速度不合理均导致其抓举失败。
Titanium titanium portable high-speed camera system for athletes fixed-point shooting, the use of principles and methods of sports biomechanics, Meng × × snatch technical action shooting and analysis of knee angle, angle of the hip, torso, barbell height, bell level speed and bell Vertical speed and its process parameters. The results show that the torso is in the stage of knee extension and the knee extension, which leads to premature backwardness, resulting in insufficient knee extension. The torso angle is excessively backwards at the maximum moment of bell speed. The unstable technique of snatch motion such as barbell at After reaching the highest point, the support plane is not stable and the horizontal velocity is unreasonable, which leads to the failure of snatch.