Elliptical Machines Versus Treadmills

elliptical machines
(Elliptical machine) An elliptical trainer (also sometimes called a cross-trainer) is a stationary exercise machine used to simulate walking or running without causing excessive pressure to the joints, hence decreasing the risk of impact injuries.

treadmills
(treadmill) an exercise device consisting of an endless belt on which a person can walk or jog without changing place
(treadmill) a mill that is powered by men or animals walking on a circular belt or climbing steps
(treadmill) a job involving drudgery and confinement
A device formerly used for driving machinery, consisting of a large wheel with steps fitted into its inner surface. It was turned by the weight of people or animals treading the steps
An exercise machine, typically with a continuous belt, that allows one to walk or run in place
A job or situation that is tiring, boring, or unpleasant and from which it is hard to escape

versus
Against (esp. in sports and legal use)
As opposed to; in contrast to
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