Meats is meant to be immensly strong. He was shifting most of his weight on his right foot, meaning that if he pushed off with it, the force would transfer directly to his body, throwing him backwards. This maneouver is performed thanks to his muscle, not weight, as he pulls the sword back with his torso and leg, while continuing the clockwise motion to expend the momentum instead of immediately halting it. The dodge is also tied into this action. Plus, the attack initialy was just 6/10 of his maximum potential.