Dr. Gideon Ariel is a world-renowned authority in biomechanics, the science linking physics to movement of the human body, with special expertise in computer science. He is an Israeli former Olympic track and field athlete, competing in the shot put and discus throw. He completed his graduate and post-doctoral work at the University of Massachusetts, where he received a Ph.D. in Biomechanics and Computer Science. Dr. Ariel has published numerous scientific papers, has been featured on national TV and in many magazines, and holds several patents, including one on variable resistance which is the basis of most modern exercise equipment. He served as consultant to many of the country's leading companies, founded an independent laboratory devoted to biomechanical research relating to human performance, and was chairman of the U.S. Olympic Biomechanical Committee. Dr. Ariel has been active in the fields of exercise and movement quantification for over 50 years. He conducted the first scientific study of anabolic steroids, invented the first rapid and accurate computerized system to quantify the movement of Olympic athletes using the Newtonian laws of motion, invented the air shoe, and invented an exercise system that was actually controlled, not merely monitored, by a computer.