Abstract: A seat bound exercise system provides resistive rotational motion of the ankle to combat potentially fatal problems such as lower leg thrombosis. The system comprises an attachment member with upper and lower ends. The lower end is provided with a bore and extends to a ground surface. A support cylinder with a top end, a bottom end, an inner edge and an outer edge is provided. The bottom end has a coaxial bore allowing rotatable coupling with a bore of the attachment members with a pin. A handle bar, including a cylindrical receiving bar and a cylindrical intermediate portion, is provided next. The receiving bar has a lower portion telescoping over and coupled to the top ends of the support cylinders and upper portion. The intermediate bar telescopes over and is coupled to the receiving bar. Also included is a source of resistance force with piston rods. A foot pedal with a foot receiving portion is provided.