US Patent 7887465 Adaptive motion exercise device with plural crank assemblies

An exercise device includes a first crank arm assembly and a second crank arm assembly supporting opposite portions of a guide. A first foot pad is coupled to the guide to reciprocate along the guide. A foot pad link has a first end portion pivotably connected to the foot pad and a second end portion pivotably supported about an axis that is movable along one of a plurality of user selectable paths, each of the plurality of user selectable paths having a different length.