Over-exertion in lifting objects
Employee was lifting a stone and felt discomfort in lower back.
Employee was lifting a stone and felt discomfort in lower back.
Employee was ""opening"" a stone slab in the quarry with a hand chisel and hammer. When he held the chisel with his left hand and swung the hammer with his right, the chisel passed through the opening and his thumb struck the edge of the larger piece of stone still standing.