Elliptical Machines Vs 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) a mill that is powered by men or animals walking on a circular belt or climbing steps
An exercise machine, typically with a continuous belt, that allows one to walk or run in place
(treadmill) an exercise device consisting of an endless belt on which a person can walk or jog without changing place
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
(treadmill) a job involving drudgery and confinement
A job or situation that is tiring, boring, or unpleasant and from which it is hard to escape