本文比较了10名世界水平的举重运动员与26名一般水平的大学生运动员在完成抓举的提铃动作——从杠铃离地到把杠铃举过头顶,身体成下蹲支撑时的技术。采用影片分析的方法测量关节角度、身体重心位置和杠铃的位置。结果表明,世界水平的运动员比一般水平的运动员举起杠铃的高度都相对较低,在上举的一定时期,髋、膝关节屈曲较深,小腿与地面的夹角也较小,下蹲阶段身体下降较快。 This article compares the skills of 10 world-class weightlifters with 26 average college-student athletes in lifting snaps - from the barbell to the ground with the barbell over his head and the body into a squat support. Using video analytics, measure joint angles, body center of gravity, and barbell position. The results show that the world-class athletes hold a lower barbell height than the average athlete. In the certain period of lifting, the hip and knee buckles deeper and the angle between the lower leg and the ground is smaller. During the squatting stage, The body falls faster.