BIOMECHANICAL ANALYSIS OF PULLING PHASES IN WEIGHT LIFTING – A CASE STUDY

The purpose of this study was to analyze specific aspects of weight lifting techniques. In analyses of snatch lift, identification of the pulling phase, in order to determine the critical points is the primary task. The kinematics and kinetics parameters are closely interrelated with pulling phases. Because of the differences in definitions of phase structures, the data from previous studies couldn’t be compared with each other directly. Therefore, this study investigated the phase structures in snatch lift and established the relationship between several variables of kinematics, such as the knee angle, the barbell vertical velocity and position, etc. It is clear that in the course of analyses, identifying the phases by means of the barbell vertical velocity, is the most convenient and logical method for obtaining fast feedback. Based on the above definitions of the phases, the mechanical data of two snatch lifts by an elite have been measured and analyze