EE our loader Operator stopped to talk to a truck driver, he was on the deck of the loader knelt down talked to the driver he went to stand up heard a pop in his right lower calf The next morning he said he had hurt is calf the previous day I took him the Enumclaw Hospital He returned to work on 8/4/14 The contributing factor is EE is 5""-11"" weighs 305 lbs and 54.