Comprehensive Airman Fitness
U.S. Air Force Senior Airman Katherine Sample, 355th Security Forces Squadron visitor center clerk, lifts a barbell at the Benko Fitness Center under the guidance of Kayla Pevehouse, Benko Fitness Center personal trainer, at Davis-Monthan Air Force Base, Ariz., Sept. 10, 2013. Receiving instruction, exercise or nutritional, from a licensed personal trainer can help improve physical fitness, which can help Airmen strengthen the physical pillar of Comprehensive Airman Fitness. (U.S. Air Force photo by Staff Sgt. Courtney Richardson/Released)