LANGLEY AIR FORCE BASE, Va. -- 2nd Lt. David Earl, 633d Contracting Squadron contract specialist, begins a prism sports obstacle course with a low crawl May 21. Prism Sports is a high intensity workout designed to develop an athlete’s power, movement biomechanics, and strength while also reducing the likelihood of non-contact injury by teaching correct exercise technique, increasing lean body mass, gaining strength and flexibility, correcting postural deviations, and developing the body’s metabolic energy system. (U.S. Air Force Photo/Staff Sgt. Christina M. Styer)