To succeed and maximize efficiency in the snatch and clean in weightlifting, the bar must necessarily make contact with the body (at the hip crease for the snatch and the upper thighs for the clean) in order to transfer power vertically.

noli's read

Biomechanical analysis firmly supports the importance of keeping the bar as close to the body as possible to optimize the trajectory and efficiency of the lift. Observational kinematic studies, such as those conducted by Gourgoulis et al. (2013) on world-class athletes, show that the proximity of the bar to the body's center of gravity is directly correlated with success in maximal load attempts. Standard technical analyses (such as the work of DeWeese in 2012) also validate the fact that anatomy and grip width necessitate these specific contact zones during the extension phase. However, the physics of the movement provides a slight nuance: this physical contact is not the engine that generates vertical power. It is the explosive push of the legs against the ground (triple extension) that propels the load, while the contact serves as a guide to maintain a straight trajectory. The consensus among expert coaches, represented by Greg Everett of Catalyst Athletics, further warns against a collision that is too abrupt, which would deflect the bar forward and waste energy. The creator's advice is therefore excellent for technique, provided one aims for a fluid graze rather than a collision.

the sources

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