A non-impact exercise device comprising a framework, at least one ramp assembly, a pair of foot support assemblies, a foot location control assembly, and means for adjusting the maximum stride length of the foot support assemblies. A web of electrically conductive material having a thickness in the range of approximately 5 to approximately 50 microns is releasably secured to a carrier web using a releasably securable adhesive substantially coextensive with the conductive web. The apparatus further includes a plunger, having a top surface, disposed within the planar surface aperture for reciprocal movement between a first position where the plunger top surface is above the planar surface and a second position that where the top surface is lower than in the first position with respect to the planar surface. The frequency location is based on the minimization of the mean square error between RD and RT.