GYROTONIC®/GYROKINESIS® Principles Applied to Dynamic Trunk stabilization Classes This series of three classes will focus on the kinaesthetic application of the method's principles using GK movement sequences.  With practice during these classes, the “thinking” enhances yet takes a back seat to the “feeling.”Only when you really feel the application of the GYROTONIC®  Principles in your system is it possible to convey the Method to our clients in the way in which I BELIEVE it was intended.