7/12/2012 - Army Sgt. 1st Class Gregg Johnson, 708th Military Detachment first sergeant, uses a leg stretching apparatus at physical therapy to condition his knee at Misawa Air Base, Japan, July 11, 2012. The purpose of physical therapy is to get people back to full strength and give them the ability to complete the mission. (U.S. Air Force photo/Airman 1st Class Zachary Kee/Released)

7/12/2012 - U.S. Air Force Staff Sgt. Winifred Gordon, left, 35th Medical Operations Squadron physical therapy flight technician, instructs Senior Airman Jordan Atkins, 35th Medical Support Squadron family member relocations coordinator, how to do an independent exercise at Misawa Air Base, Japan, July 11, 2012. The goal of physical therapy is to get patients back to doing everyday activities without pain or injuries so they can complete the mission. (U.S. Air Force photo/Airman 1st Class Zachary Kee/Released)

7/12/2012 - Servicemembers take part in physical therapy to work their way back from respective injuries at Misawa Air Base, Japan, July 11, 2012. Recovering from these injuries and becoming fit to fight is the goal of physical therapy. (U.S. Air Force photo/Airman 1st Class Zachary Kee/Released)