ALLEDGED INCIDENT WAS TO HAVE OCCURRED WHILE THIS EE WAS HELPING INSTALL A FEED JACK ON A ROOF BOLTER. HE CLAIMS TO STRAINED A ABDOMEN MUSCLE WHILE LIFTING. CAUSE OF THIS INJURY WAS SAFE LIFT ING TECHNIQUES. COMPLIANCE WITH RULES /REG NOT A FACTOR, PROTECTIVE EQUIPMENT NOT A FACTOR. MINER PROFIENCY A FACTOR, MINING EQUIPMENT SYSTEMS OT A FACTOR MINING EQUIPMENT NOT A FACTOR.