EXHIBIT A JOINT FILING AGREEMENTJoint Filing Agreement • February 17th, 2009 • Magnetar Financial LLC • Services-amusement & recreation services
The undersigned hereby agree that the statement on Schedule 13G with respect to the Common Stock of Health Fitness Corporation dated as of February 17, 2009 is, and any amendments thereto (including amendments on Schedule 13D) signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the previsions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
