DURING KILN SHUTDOWN, EMPLOYEE STRAINED HIS LOWER BACK WHILE HELPING TO LAY BRICK IN FLOOR OF CEMENT KILN. HE SAW PHYSICIAN ON 8-24-01, RECEIVED OSTEOPATHIC TREATMENT AND WAS PLACED ON LIGHT D UTY. HE WORKED ON LIGHT DUTY 8-24, 8-25, AND 8-26. RETURNED TO REGULAR DUTY 9-4-01.