Airman 1st Class Ryan Prewitt, 2nd Force Support Squadron fitness specialist, signs in Senior Airman Joseph Trahan, 2nd Aircraft Maintenance Squadron crew chief, for his physical fitness test on Barksdale Air Force Base, La., Aug. 5, 2013. The Air Force physical fitness test is comprised of four components, an abdominal circumference, push-ups, sit-ups and a 1.5 mile run or 1 mile walk. (U.S. Air Force photo/Senior Airman Sean Martin)
Airman 1st Class Andrew Alexander, right, 608th Air Operations Center client systems technician, measures the height of Senior Airman Joseph Trahan, 2nd Aircraft Maintenance Squadron crew chief, during a physical fitness test on Barksdale Air Force Base, La., Aug. 5, 2013. Physical Training Leaders from various squadrons are asked to assist fitness center personnel during physical fitness testing. This is done to ensure the PTLs stay current with their training and that their units are performing each component of the test correctly. (U.S. Air Force photo/Senior Airman Sean Martin)
Airmen perform the push-up portion of a physical fitness test on Barksdale Air Force Base, La., Aug. 5, 2013. Airmen who achieve a score of 90 percent or higher on the test do not have to test for another year. If they score between 75 and 90 percent, they must test again in six months. Anything below 75 percent is a failure. (U.S. Air Force photo/Senior Airman Sean Martin)
Senior Airman Dustin Rottinghaus, 26th Operational Weather Squadron weather forecaster, demonstrates a proper sit-up during a physical fitness test on Barksdale Air Force Base, La., Aug. 5, 2013. Each portion of the test is demonstrated to ensure testers perform push-ups and sit-ups correctly. (U.S. Air Force photo/Senior Airman Sean Martin)
A clock is used to keep time during the 1.5 mile run portion of a physical fitness test on Barksdale Air Force Base, La., Aug. 5, 2013. Airmen must meet the minimum standard in each of the four sections in order to pass the test. (U.S. Air Force photo/Senior Airman Sean Martin)