Gyrotonic    The fundamentals of the Gyrotonic Expansion System® consists of a totally new exercise system, using GYROKINESIS® as the basis to exercise the musculature while mobilizing and articulating the joints.   The uniqueness of the System is that it simultaneously stretches and strengthens the body with minimal effort, while increasing range of motion and developing coordination.   The Gyrotonic Expansion System® was specially conceived regarding key principles of gymnastics, swimming, ballet, and yoga through which major muscle groups are worked interdependently and in an integrated manner.   This "System" is served by a series of specially designed exercise equipment, which is built around the human body with all regards to total freedom in movement, no restriction to speed and versatility, and enhances rather than distracts from coordination, strength and flexibility.