Elliptical trainer
Appearance
An elliptical trainer is a piece of stationary exercise equipment used to simulate walking or running while decreasing the risk of impact injuries. The user stands over the machine on pedals that move in independent orbits.
They can be powered with electricity for assisting the stride and/or tracking progress. To generate resistence airodynamic, magnetic or motor assisted braking are commonly used. Several semi-professional models also offer adjustable incline. Professional models do not require/offer this feature.