YOKOTA AIR BASE, Japan - Col. Lee Harvis, 374th Medical Group commander (left), and Mary Basiliere, American Red Cross senior station manager, explain the importance of the newest addition to the physical therapy department during a ribbon-cutting ceremony held at the physical therapy clinic at Yokota Air Base, Japan, May 11, 2011. The AlterG Zero-Gravity Treadmill will help patients recover in rehabilitation following injury or surgery of the lower extremities. (U.S. Air Force Photo/Airman 1st Class Katrina R. Menchaca)