1. Department of the Air Force. Air Force instruction 40-501, the Air Force Fitness Program. Washington, DC: Department of the Air Force, October 1998.
2. Pollock ML, Garzarella L, DeHoyos D, et al. The cross-validation of the United States Air Force’s submaximal cycle ergometer test to estimate aerobic capacity. Brooks Air Force Base, TX: Crew Technology Division, 1994 (Technical report no. AL/CF-TR-1994-0046).
3. Åstrand I. Aerobic work capacity in men and women with special reference to age. Acta Physiol Scand 1960;49(suppl 169).
4. Air Force Materiel Command, Human Systems Program Office. Performance specification: Air Force Fitness Program (AFFP) and Fitness Program Assessment Software (FPAS). Brooks Air Force Base, TX: Headquarters Human Systems Command, 1996 (Technical document no. YAE-9501-01).
5. Smoking and physical fitness among Navy shipboard personnel;Conway;Mil Med,1988