In the ‘60s Gary Graham and the team of bioscientists at Boeing developed the cardiovascular conditioner as a potential exercise system for the Manned Orbiting Lab (MOL). Research studies on the prototype were very promising, but the government canceled the MOL project in favor of the NASA lunar mission. Twenty years later Gary resurrected the MOL project exercise system concept for use as an earth-bound exercise machine. Additional research and development resulted in a patented horizontal rebounding exercise machine named the CMC (CardioMuscular Conditioner) Shuttle 2000. Since then Shuttle System has developed several exercise machines that are now widely used in physiotherapy and sports.