Capt. Chad Nishizuka, 34th Bomb Squadron chief of weapons and tactics, uses a resistance band to strengthen his rotator cuff during a physical therapy appointment at Ellsworth Air Force Base, S.D., Oct. 2, 2013. The 28th MDOS physical therapy clinic is a rehabilitative health treatment center that utilizes exercises and other therapeutic methods as a way of helping individuals regain or improve their physical abilities. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)