U.S. Army Soldiers perform supine bicycles during a group physical training session at Fort Eustis, Va., April 22, 2014. Soldiers attended a four-week Army Physical Readiness Training Leader Course led by a mobile training team from the U.S. Army Physical Fitness School in the hopes of becoming master fitness trainers. (U.S. Air Force photo by Senior Airman Teresa J.C. Aber/Released)