Airman 1st Class Corey Rollins, 100th Force Support Squadron fitness specialist, ensures that Salvatore Grasso executes the proper squat technique during his workout at the Hardstand Gym April 1, 2009, at RAF Mildenhall, England. The Hardstand Fitness Center recently adjusted its hours to better accomodate shift workers. (U.S. Air Force photo by Staff Sgt. Jerry Fleshman)