CrossFit is a principal strength and conditioning program for elite athletes, as well as military and law enforcement units. It's used by everyone and anyone that wants to improve their fitness and strength, which include military special operations units, champion martial artists, and tactical teams worldwide. By design, the program delivers an all-around training experience that is both broad and inclusive.The CrossFit program is designed for universal scalability making it the perfect application for any committed individual regardless of experience. We've used our same routine on anyone from an elderly man with heart disease to a cage fighter who is one month away from a televised fight. We scale load and intensity; we don't change programs. Supplied by CrossFit.com