EMPLOYEE WAS PERFORMING SOME MAINTENANCE WORK IN THE NO. 2 BATH IN THE COARSE COAL PLANT. WHILE LIFTING A SHOE INTO THE BATH HE EXPERIENCED SOME PAIN ACROSS HIS LOWER BACK. ON MARCH 9, 2001 IT WAS LEARNED THAT HE HAD RECENTLY BEGUN A SERIES OF CHIROPRACTIC TREATMENTS FOR THIS INJURY.