Abstract: A treadmill assembly comprising a substantially horizontal tread assembly including oppositely extending front and rear ends, a tread and a controller for controlling movement of the tread, a support structure extending proximate the rear end of the tread assembly to a distal top end substantially above the rear end of the tread assembly, a table top member mounted to the distal top end of the support structure, the top member including a substantially flat work surface and a front edge, the work surface having dimensions suitable to support a computer keyboard and a control assembly including at least one input button for providing command signals for controlling the controller, the control assembly supported by the table top member adjacent the front edge of the table top member.