Patent attributes
An elliptical exercise machine includes a base support structure, first and second reciprocating foot supports movably linked to the base support structure, first and second guide rails, and first and second rollers. The guide rails guide respective first and second foot supports to provide reciprocal movement of the foot supports. The guide rails each include a track surface having first and second end portions and at least first and second arch portions, respectively. The first arch portion is positioned at a location between the first and second end portions and having a first radius of curvature. The second arch portion is positioned at one of the first and second end portions and has a second radius of curvature that is less than the first radius of curvature. The first and second rollers are movable along the track surface of the guide rails.
