Is a 32-year-old firefighter who strained his right hamstring muscles near the ischial tuberosity while pulling a heavy individual out of a burning building 4 days ago. currently, he is experiencing considerable pain, especially when rising from or lowering himself into a chair and climbing or descending stairs, and is unable to sit on hard surfaces (because of pressure as well as flexing the hip). hip flexion is limited to 90˚ and slr to 45˚. he tolerates minimal resistance to hip extension or knee flexion. this individual must be able to climb a ladder while wearing his gear (40 lb) and air pack (40 lb) and carrying a 20-lb hand tool; in addition, he must be able to carry a 175-lb individual across his shoulder, drag a heavy body across the floor, climb five flights of stairs while wearing full gear, and run a half mile in 5 minutes to be able to return to work.