My lower back hurts just watching this.
Takes some decent strength to do this, but if he keeps training like this, he won't last long.
You'd be surprised how little strength it actually takes.
The bar is basically catapulted off the bench with each rep due to the bar flex, with only minor pulling actually being done by the retard.
Strong partial deadlifts, and a great way to destroy a bar, I'll give him that.