Airman 1st Class Caleb Wentworth of the 123rd Logistics Readiness Squadron, performs pushups during the 123rd Airlift Wing Fitness Challenge at the Kentucky Air National Guard Base in Louisville, Ky., on Oct. 21, 2012. The challenge tested the ability of teams from across the base to complete a timed circuit that also included a 1.5-mile relay race and 40 sit-ups. (U.S. Air Force photo by Senior Airman Maxwell Rechel)