Elliptical exercisers are part stair-climber, part cross-country-ski machine. Workouts approach the cardio levels you can reach on a treadmill and are good for those with lower-body joint problems where the impact from running is a concern.
Bringing the gym experience into your home makes it easier to exercise. Many people opt for treadmills, but the pounding can be hard on your joints. Ellipticals mimic the motion of running but without the impact. The moving handgrips and adjustable resistance allow you to create a more intense, full-body workout.