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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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The invention claimed is: 1. An exercise apparatus comprising: a first treadle assembly providing a first moving surface, the first treadle including a front and a rear; a second treadle assembly providing a second moving surface, the second treadle including a front and a rear; an interconnection

The invention claimed is: 1. An exercise apparatus comprising: a first treadle assembly providing a first moving surface, the first treadle including a front and a rear; a second treadle assembly providing a second moving surface, the second treadle including a front and a rear; an interconnection assembly operably connecting the first treadle assembly and the second treadle assembly such that pivotal movement of the first treadle assembly in a first direction causes pivotal movement of the second treadle assembly in a second direction opposite of the first direction, the interconnection assembly including an adjustment mechanism configured to adjust a level of at least one of the first treadle assembly and the second treadle assembly with an increase in length of the adjustment mechanism increasing the level of the first treadle assembly and/or the second treadle assembly; and at least one resistance element operably coupled with the interconnection assembly. 2. The exercise apparatus of claim 1 wherein: the first moving surface comprises a first roller and a second roller and an endless belt in rotatable engagement with the first and second roller; and the second moving surface comprises a third roller and a fourth roller and a second endless belt in rotatable engagement with the third and fourth roller. 3. The exercise apparatus of claim 1 wherein the interconnection assembly comprises: a rocker arm arranged to pivot about a first pivot point. 4. The exercise device of claim 3 wherein the rocker arm comprises a first portion and a second portion to either side of the first pivot point, the first portion coupled with the first treadle assembly and the second portion coupled with the second treadle assembly. 5. The exercise device of claim 4, wherein the interconnection assembly further comprises: a first rod connected between the first portion of the rocker arm and the first treadle assembly; and a second rod connected between the second portion of the rocker arm and the second treadle assembly. 6. An exercise apparatus comprising: a first treadle assembly providing a first moving surface, the first treadle assembly arranged to pivot; a second treadle assembly providing a second moving surface, the second treadle assembly arranged to pivot; an interconnection assembly operably connecting the first treadle assembly and the second treadle assembly such that pivotal movement of the first treadle assembly in a first direction causes pivotal movement of the second treadle assembly in a second direction opposite of the first direction; and at least one resistance element operably coupled with the interconnection assembly; wherein the interconnection assembly comprises a rocker arm arranged to pivot about a first pivot point, the rocker arm comprising a first portion and a second portion to either side of the first pivot point, the first portion coupled with the first treadle assembly and the second portion coupled with the second treadle assembly; and wherein the interconnection assembly further comprises a first rod connected between the first portion of the rocker arm and the first treadle assembly and a second rod connected between the second portion of the rocker arm and the second treadle assembly, the first rod comprising a turnbuckle and the second rod comprising a turnbuckle. 7. The exercise apparatus of claim 1 wherein the at least one resistance element comprises a rotationally elastic member. 8. The exercise apparatus of claim 1 wherein the resistance element comprises a clutch. 9. The exercise apparatus of claim 8 wherein the interconnection assembly comprises a rocker arm adapted to pivot about a pivot axis, and wherein the clutch comprises a first clutch plate operably connected with the rocker arm and a second clutch plate adapted to engage the first clutch plate to provide a resistance between the first and second clutch plates. 10. The exercise apparatus of claim 9 wherein the second clutch plate is adjustably arranged to provide an adjustable resistance between the first clutch plate and the second clutch plate. 11. The exercise apparatus of claim 10 wherein the second clutch plate is supported by a pivotable bracket, the pivotable bracket comprising a biasing member to adjust the second clutch. 12. The exercise apparatus of claim 11 further comprising a spring member arranged to urge the second clutch plate against the first clutch plate. 13. The exercise apparatus of claim 3 further comprising a frame and wherein the resistance element comprises: at least one spring element operably coupled between the frame and the rocker arm. 14. The exercise apparatus of claim 13 wherein the at least one spring is coupled to the rocker arm distally from the first pivot point. 15. The exercise apparatus of claim 3 further comprising: a frame; the rocker arm comprises a pivot axle; the resistance element comprises a pulley operably coupled with the pivot axle; and at least one spring operably coupled between the pulley and the frame. 16. An exercise apparatus comprising: a first treadle assembly providing a first moving surface, the first treadle assembly arranged to pivot; a second treadle assembly providing a second moving surface, the second treadle assembly arranged to pivot; an interconnection assembly operably connecting the first treadle assembly and the second treadle assembly such that pivotal movement of the first treadle assembly in a first direction causes pivotal movement of the second treadle assembly in a second direction opposite of the first direction; at least one resistance element operably coupled with the interconnection assembly; wherein the interconnection assembly comprises a rocker arm arranged to pivot about a first pivot point, wherein the rocker arm comprises a pivot axle; and a brake operably coupled with the pivot axle. 17. The exercise apparatus of claim 16 wherein the brake comprises a hydraulic device. 18. An exercise apparatus for a user with a first foot and a second foot, the exercise device comprising: a frame structure; a first treadle assembly pivotally connected at its rear with the frame structure, the first treadle assembly including an endless belt; a second treadle assembly pivotally connected at its rear with the frame structure, the second treadle assembly including a second endless belt; an interconnection member operably connected with the first treadle assembly and with the second treadle assembly such that pivotal movement of the first treadle assembly in a first direction causes pivotal movement of the second treadle assembly in a second direction opposite of the first direction, the interconnection assembly including an adjustment mechanism configured to adjust a level of at least one of the first treadle assembly and the second treadle assembly with an increase in length of the adjustment mechanism increasing the level of the first treadle assembly and/or the second treadle assembly; at least one resistance element operably associated with the interconnection member; and whereby, during use of the exercise device, a first foot moves rearwardly and downwardly and a second foot moves forwardly and upwardly. 19. The exercise device of claim 2 further comprising at least one motor arranged to rotate the endless belts. 20. The exercise device of claim 18 further comprising at least one motor arranged to rotate the endless belts. 21. The exercise device of claim 2, wherein the resistance element is positioned at least partially below at least one of the first treadle or the second treadle. 22. The exercise device of claim 1, wherein the adjustment mechanism comprises a turnbuckle with an adjustable length. 23. The exercise device of claim 1, wherein the adjustment mechanism is configured to adjust a level of both the first treadle assembly and the second treadle assembly. 24. The exercise device of claim 23, wherein the adjustment mechanism comprises a first turnbuckle with an adjustable length and a second turnbuckle with an adjustable length such that the adjustment mechanism is configured to adjust the levels of the first treadle assembly and the second treadle assembly independently. 25. The exercise device of claim 18, wherein the adjustment mechanism comprises a turnbuckle with an adjustable length. 26. The exercise device of claim 18, wherein the adjustment mechanism is configured to adjust a level of both the first treadle assembly and the second treadle assembly. 27. The exercise device of claim 26, wherein the adjustment mechanism comprises a first turnbuckle with an adjustable length and a second turnbuckle with an adjustable length such that the adjustment mechanism is configured to adjust the levels of the first treadle assembly and the second treadle assembly independently.