The United States Air Force Fitness Test (AFFT) is designed to test the body composition, muscular strength/endurance and cardiovascular respiratory fitness of airmen in the United States Air Force. As part of the Fit to Fight program, the Air Force adopted a more stringent physical fitness assessment; the new fitness program was established on January 1, 2004, and replaces the annual ergo-cycle test that the Air Force had used for several years. Some reports state that participation at fitness centers is up 30 percent since the new program was established. In the AFFT, Airmen are given a score based on performance consisting of four components: waist circumfirence, the crunch, the push-up, and a 1.5 mile run. Airmen can potentially earn a score of 100; a passing score is anything over 75