INDIVIDUAL LIFTED A PIECE OF STEEL AND HEARD HIS LOWER BACK POP. HE WORKED THE REMAINDER OF HIS SHIFT AND FELT OK. THE NEXT DUNDAY HE CONTACTED ME AND ASK TO BE TAKEN TO DR. HE WAS EXAMINED AN D DESIGNATED WITH A STRAINED LOWER BAKC AND GIVEN MEDIUM DUTY. HE WENT BACK TO SPECIALIST 9-26-03 AND WAS GIVEN EXTREMELY LIGHT DUTY AND WE WERE UNABLE TO ACCOMMODATE AND WE LET HIM GO.