EE WAS WORKING ON HIGHWALL MINER SYSTEM AND CHANGING BITS ON THE MINER. MINER WAS LOOCKED AND TOSSED AND THE EE WAS ROTATING THE MINER MANUALLY WITHOUT THE ASSISTANCE OF A PRYBAR. WHILE PERFORMING THIS WORK THE EE BEGAN TO EXPERIENCE PAIN IN HIS LOWER BACK. HE WAS TREATED AND RELEASED AT E.R. AND IS CURRENTLY AWAITING TO SEE AN ORTHOPEDIC SPECIALIST.