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An exercise device employing side-by-side pivotally supported moving surfaces. In one particular example, an exercise device employs a first belt deployed about a front roller and a rear roller and an adjacent second belt deployed about a front roller and a rear roller. The rear of the belts in the

An exercise device employing side-by-side pivotally supported moving surfaces. In one particular example, an exercise device employs a first belt deployed about a front roller and a rear roller and an adjacent second belt deployed about a front roller and a rear roller. The rear of the belts in the area of the rear rollers are pivotally secured and the front of the belts in the area of the front roller are adapted to reciprocate in an up and down motion during use. In some implementations, the moving surfaces include an interconnection structure such that a generally downward movement of one surface is coordinated with a generally upward movement of the other surface. In other implementations, the moving surfaces are operably associated with one or more resistance elements that effect the amount of force required to pivot or actuate the moving surfaces.

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It is claimed: 1. An exercise machine, comprising: a frame; a first treadle having a belt, a treadle frame, and a set of three rollers defining a triangular shape, the belt positioned about the set of rollers; a second treadle having a belt, a treadle frame, and a set of three rollers defining a tr

It is claimed: 1. An exercise machine, comprising: a frame; a first treadle having a belt, a treadle frame, and a set of three rollers defining a triangular shape, the belt positioned about the set of rollers; a second treadle having a belt, a treadle frame, and a set of three rollers defining a triangular shape, the belt positioned about the set of rollers; and means for pivotally coupling the first and second treadles to the frame at a location respectively between ends of treadle surfaces defined by the first and second treadles such that the first and second treadles are supported to pivot relative to the frame near respective rear ends whereby a user can step or stride on the treadles. 2. The exercise machine of claim 1, wherein the set of three rollers includes and upper pair of rollers and a lower roller, said lower roller pivotally connected with said frame. 3. An exercise apparatus comprising: a frame; a first movable belt treadle assembly having a first belt, a first drive roller, and first and second rollers; wherein the first drive roller and the first and second rollers are disposed in a first generally inverted triangular arrangement with the first drive roller being at the apex of the first triangular arrangement; wherein the first belt is disposed about the first drive roller and the first and second rollers; wherein the first movable belt treadle assembly is pivotally mounted to the frame in proximity to the first drive roller; a second movable belt treadle assembly having a second belt, a second drive roller, and third and fourth rollers; wherein the second drive roller and the third and fourth rollers are disposed in a second generally inverted triangular arrangement with the second drive roller being at the apex of the second triangular arrangement; wherein the second belt is disposed about the second drive roller and the third and fourth rollers; and wherein the second movable belt treadle assembly is pivotally mounted to the frame in proximity to the second drive roller whereby a user can step or stride on the treadles. 4. The exercise apparatus of claim 3 further comprising: first and second pivot brackets attached to the frame; a motor coupled to the frame; a drive shaft, the first and second drive rollers being affixed to the drive shaft and the drive shaft being rotatably coupled to the pivot brackets to provide a pivot for the first and second treadle assemblies; and a torque transfer mechanism coupling the drive shaft to the motor. 5. The exercise apparatus of claim 3 further comprising: a first dampening device coupled between the frame and the first movable belt treadle assembly; a first biasing device coupled between the frame and the first movable belt treadle assembly; a second dampening device coupled between the frame and the second movable belt treadle assembly; a second biasing device coupled between the frame and the second movable belt treadle assembly; and a reciprocating linkage coupled between the first movable belt treadle assembly and the second movable belt treadle assembly. 6. The exercise apparatus of claim 5 wherein: the frame comprises an upright; the first dampening device and the first biasing device are integrated into a first unitary device coupled between the upright and the first movable belt treadle assembly; and the second dampening device and the second biasing device are integrated into a second unitary device coupled between the upright and the second movable belt treadle assembly.