Arthur Allen Jones (November 22, 1926 – August 28, 2007) was the founder of Nautilus, Inc. and MedX, Inc. and the inventor of the Nautilus exercise machines, including the Nautilus pullover, which was first sold in 1970. Jones was a pioneer in the field of physical exercise i.e. weight and strength training. He was born in Arkansas, and grew up in Seminole, Oklahoma. Accomplishments Jones's ideas tried to move the public's notion of bodybuilding and strength-training exercise away from the Arnold Schwarzenegger school of training, which involved hours in the gym using free weights, to high intensity training. This involves short, single sets, with each set taken to the point of complete muscular failure with a frequency of once or at most twice a week with the intention to maximize muscular hypertrophy and strength increases. Famous individuals who trained under Jones's supervision include Casey Viator (who participated in the Colorado Experiment), Eddie Robinson (who worked with and participated in and trained under Jones's Nautilus leverage line, which is now Hammer Strength, , IFBB professional body builders Mike and Ray Mentzer (both won the Mr. America IFBB and AAU respectively), Sergio Oliva (winner of every major bodybuilding contest and was also the only individual to win the Mr. Olympia over Arnold Schwarzenegger who placed 2nd) and Boyer Coe (Mr. America, Mr.International, Mr.Universe etc.) Jones's publications included the Nautilus Bulletins, which dispelled contemporary myths of exercise and resistance training. He also wrote and published "The Cervical Spine, Lumbar Spine And The Knee," which provided for the first time a complete description of the function of the lumbar spine and its true range of motion. Additional publications included the results of Jones's studies on the differing responses of muscular structures exposed to varying amounts of exercise throughout limited and unlimited range of motion. Jones labeled these responses as type S response for specific and type G for general. He was among the first researchers to experiment with exclusively eccentric training on test subjects and among the first to suggest the superiority and importance of eccentric training for strength. He was the inventor of infimetric and akinetic exercise equipment. He was the first exercise machine designer to utilize cams, as opposed to pulleys, in exercise machines, making possible for the first time resistance that varied along the force curves generated by human muscular structures. It was the advent of Nautilus machines that made resistance