US Patent 7182714 Compact elliptical exercise machine with adjustable stride length

An elliptical exercise machine and methods for using the machine where the horizontal length of the stride of the ellipse can be adjusted by the user without the user having to alter the vertical dimension of the ellipse by an equivalent amount. The machine provides for alteration due to the interaction of two arms via a coupler where distance from a rotational axis to the coupler may be adjusted. The machine may allow for this adjustment to occur during the performance of an exercise routine.