The Gravity Guiding System Author:Robert M. Martin, M.D. Dr. Robert Martin, M.D.,developer of the GRAVITY GUIDING SYSTEM, specializes in orthopedics and has a practice in Pasadena, California. He is also a lecturer, writer, teacher, inventor, and medical consultant. — Dr. Martin is a member of the American Medical Association and the American College of Sports Medicine. He also served as Assistant Medi... more »cal Director of American Airlines in Los Angeles.
Dr. Martin's Gravity Guiding System has been established as a valuable form of exercise and is presently used by hospitals, universities, professional sports organizations, and health clubs nationwide.« less