EXHIBIT 16 December 15, 1998 Securities and Exchange Commission Mail Stop 9-5 450 5th Street, N.W. Washington, DC 20549 Dear Sirs/Madams: We have read and agree with the comments in Item 4 of the Form 8-K on Health Fitness Corporation dated December 8, 1998. Very truly yours, /s/ GRANT THORNTON LLP Minneapolis, Minnesota