EE HAS BEEN REPORTING BACK TROUBLE TO MANAGEMENT FOR THE PAST SEVERAL MONTHS & DISCUSSED WITH MANAGEMENT PRIOR TO ENTERING THE MINE ON THE DAY IN QUESTION & IN FACT ASKED ABOUT A BACK BRACE WH ICH HAD BEEN ORDERED FOR HIM. EE STEPPED OFF OF HIS MOTOR & STEPPED IN A HOLE JARRING HIS BACK. THE CONDITION WAS DIAGNOSED AS CHRONIC BACK TROUBLE.