Stretching
KEESLER AIR FORCE BASE, Miss. -- Physical therapist 1st Lt. Justin Theiss helps Maurine Maddox with a hamstring-stretching exercise she can do at home. Osteoarthritis in her right knee makes it difficult for Maddox to sit and stand. She began the regimen in January and within four weeks she was 95 percent improved. (U.S. Air Force photo by Steve Pivnick)