Because drag is an inherent part of the breaststroke, achieving excellent body position is essential in maximizing the forward motion of the stroke. Like freestyle and backstroke, the core is the center of power, but in breaststroke, there is no side-to-side roll, instead, there is a tipping or rocking type motion. Achieving an effective rocking motion requires the swimmer to maintain a stable hip position, while the head and legs switch back and forth between the extremes of the tipping float. The goal of the following drills for breaststroke body position is to learn to use core tension to achieve the best floating technique, while minimizing drag and maximizing glide productivity.