Developed as a bridge between fitness training and the Classic Pilates Method, IM=X stands for Integrated Movement Exercise. Benefits of this method include a combination of the stability, muscular lengthening, and flexibility of Pilates with the added elements of strength and cardiovascular training. Additional fee and sign up policy apply. . Members may sign up for a Pilates Studio class one week and one hour in advance. Non-members may sign up for a Pilates Studio class 25 hours in advance. Call 215.862.2200 for more information.