Snatch technique of male international weightlifters: A long-term analysis
The purpose of this study was to explore changes in snatch technique from 2004 to 2014 based on kinematics of the barbell. For this purpose, the first six male athletes in all eight weight categories in four international weightlifting championships were examined. To assess long-term changes, snatch-technique were analyzed using two-dimensional videometry of the barbell. The results of the long-term analyses show a clear shift in velocity production from the first pull to the second pull over time with a decrease in maximal velocity in the first pull and an increase in the maximal vertical velocity in the second pull. Consistent with the overemphasis of the second pull, there is a worse execution of the turnover and catch phases. By changing the way, the barbell is accelerated to achieve the necessary velocity for a maximum lift, the propulsion can theoretically be improved because of preventing a velocity dip in the transition. However, this lifting technique change in the acceleration phase is accompanied by drawbacks in succeeding movement phases. As a result, there was no increase in the maximum weight lifted in the competitions from 2004 to 2014. Weightlifting coaches should be aware of an overemphasis of the second pull and the accompanied negative effects on the turnover and catch phase.
© Copyright 2016 EWF Scientific Magazine. Calzetti & Mariucci. All rights reserved.
|Subjects:||weightlifting snatch technique analysis international male biomechanics|
|Notations:||training science strength and speed sports biological and medical sciences|
|Published in:||EWF Scientific Magazine|