Airman 1st Class Jessica Walker, 633rd Communication Squadron, and Airman 1st Class Kimara Duncan, 94th Aircraft Maintenance Unit crew chief, struggle to remain in the “up” push-up position for as long as possible during a competition at Junior Enlisted Appreciation Day at Langley Air Force Base, Va., July 15, 2011. Airman Walker and Airman 1st Class Monroe McAnuff, 1st Maintenance Squadron, persevered and were each awarded an Air Force physical training uniform. (U.S. Air Force photo by Senior Master Sgt. Anna Hayman/Released)