EE WAS USING SLEDGE HAMMER TO UNPLUG A HOPPER & FELT PAIN IN HIS BACK. EE RECD MED ATTENTION A FEW DAYS LATER HE IS NOW WORKING WITH A LIFTING RESTRICTION RECEIVING PHY THERAPY & FOLLOW UP MED ATTENTION. RETURN TO FULL CAPACITY IS UNK. BUT CONTINUES TO WORK IN HIS REGULAR JOB WITH SOME LIMITATIONS