150505-F-WX664-385
A member of the 26th Special Tactics Squadron completes pull-ups with a 25-pound vest during a physical fitness standards study, May 5, 2015, at Cannon Air Force Base, N.M. The results of this study will help the Air Force Fitness Testing and Standards Unit develop and validate recommendations for occupationally specific, operationally relevant, and gender-neutral physical tests and standards. (U.S. Air Force photo/Senior Airman Eboni Reece)