EMPLOYEE WAS PULLING SOME CABLES WHEN HE FELT A TWINGE AND THEN SIGNIFICANT PAIN IN HIS LOWER BACK. HE HAS A HISTORY OF BACK TROUBLE, INCLUDING A LOST-TIME ACCIDENT IN 1999. X-RAYS REVEALED DEGENERATIVE JOINT DISEASE, LUMBAR DISK DISEASE AND CHRONIC CHANGES IN L5-S1. HE STARTED MISSING TIME ON 8/18/04 TO GO FOR PHYSICAL THERAPY. DR.'S NOTES RECEIVED 9/2/04.