CAJ | 학술논문

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XX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。
채용성태편휴고속섭상계통대운동원진행평면정점박섭．운용운동생물역학원리화방법。대맹XX조거기술동작진행박섭화분석슬각、관각、구간각、강령고도、령수평속도화령수직속도급기과정삼수。연구표명：구간재신슬제령화인슬제령계단，과조적후앙발력，조성인슬불충분、구간각재령속최대시각과도후앙；조거동작기술적불은정여강령재체도최고점후거리지탱평면불은정，수평속도불합리균도치기조거실패。
In 2011 the National Women's Weightlifting Championships, Meng, who is an elite athletes at Women 75kg category, failed to snatch 130kg for three attempts. This study uses Xing Tai portable high - speed camera system to shoot the athlete, using the principles and methods of biomechanics, shooting her snatch technical movements and analyzing knee angle, hip angle, trunk angle, and the height, horizontal ve- locity, vertical velocity of Barbell, as well as its process parameters. The research shows that when the trunk in the stage of "knee extensor mention the bell" and "lead knee lift the bell" proea~s, sending force at back- bends prematurdy, your knee will not be fully lifted. The trunk angle will be hacked excessively at the maxi- mum speed. The technology of snatch action is instable, such as the instability caused by the distances be- tween supporting plane and the highest point when the barbell be reached, and unreasonable horizontal speed will lead to the failure.