EE WAS ASSISTING CHANGING A TIRE ON A JUMBO. AS THE NEW TIRE TO BE MOUNTED STARTED TO FALL, EE STRAINED HIS LOWER BACK TRYING TO PREVENT THE TIRE/WHEEL FROM FALLING OVER. AFTER THE 3RD DR VISI T ON 5-22-02 FOR THE STRAINED BACK, THE DR PRESCRIBED THERAPY FOR 4 WEEKS. THE EE IS STILL WORKING WITH NO RESTRICTIONS.