Strong muscles
Airman 1st Class Randy Slaba, 4th Medical Group physical therapy technician, asks Master Sgt. Jeffery Arnold, 4th Communication Squadron superintendent wing communication section office, if his pain level decreases or increases after stretching at Seymour Johnson Air Force Base, N.C., Feb 19, 2010. Physical therapy technicians ask patients about their pain level to determine if physical therapy is helping. Arnold's shoulder movement has improved after weeks of physical therapy following surgery. Arnold is from Milan, Ill. and Slaba is from North Platte, Nev. (U.S. Air Force photo/Senior Airman Whitney Lambert)