Contestants line up in the exercise position during a competition at Junior Enlisted Appreciation Day at Langley Air Force Base, Va., July 15, 2011. Ten junior enlisted members were challenged to remain in the “up” push-up position for as long as possible. Senior Airman Jessica Walker, 633rd Communication Squadron, 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)