EMPLOYEE WAS OPERATING A FRONT END LOADER AND AS HE LOADED AND RAISED THE BUCKET, THE BACK OF THE LOADER JOLTED AS THE COAL BROKE FREE FROM THE CUT. THIS JOLTING MOTION CAUSED PAIN IN HIS LOWER BACK. THIS INCIDENT WAS NOT REPORTED UNTIL 2-16-04 AND EE SAW A DOCTOR ON 2-17-04. THE DR RESTRICTED HIS DUTIES AS OF 2-17-04.