What's Perpetual Motion Freestyle? Think of it as ''swimming for grownups''. The traditional way of swimming freestyle is designed to maximize speed in the short term but makes you tire quickly and increases risk of injury by emphasizing fast, shorter, powerful strokes. Total Immersion's Perpetual Motion Freestyle is designed to help you swim longer with more ease and enjoyment, and to allow for the easiest transition from pool swimming to open water. There is no more efficient - or satisfying - way to swim freestyle!