INJURED EMPLOYEE NORMALLY WORKS IN SCALEHOUSE. HE WAS ASKED TO RUN A LOADER IN PLANT OT HELP LOAD RIAL CARS. HE DID THIS FOR TWO HOURS AND ALLEGED HIS BACK WAS SORE 7-14-00. HE SAID HE FELL IN HIS YARD 7-14-00, WENT TO ER DR 7-14. HE WAS REFERRED TO ANTOHER DOCTOR ON 7-25-00.