Over-exertion in lifting objects
THE MAN WAS LIFTING MINE TIMBERS AND SPRAINED A MUSCLE IN HIS BACK.
THE MAN WAS LIFTING MINE TIMBERS AND SPRAINED A MUSCLE IN HIS BACK.
EMPLOYEE HAS A HISTORY OF BACK PROBLEMS. NOTHINGSPECIFIC HAPPENED TO CAUSE AN INJURY; HIS BACK JUST BEGAN HURTING AND HE LEFT WORK TO GO HOME.