 The kick-boxer will often shift his weight backward onto his rear leg to allow his leading leg to react more quickly to an incoming blow as in a 'shield,'(right) a defense used against a round kick, or to execute swift kicking maneuvers such as foot jabs and the Muay Thai "teep" or stop kick.Radical pivoting and sudden lead changes also accommodate the wider, more powerful movement of the knees and legs.In styles that allow for the clinch, the debased balance forces movement to be more squared, and footwork to be replaced by powerful thrusting or frenetic skipping movements with the sole purpose of keeping on one's feet.