Ellipticals can be used for cardio exercise, burning fat and calories, and strengthening muscles. No matter what you use your elliptical for it's good to know basic use and safety. Elliptical machines have moving parts, so when you first step on an elliptical trainer, be prepared! Once your feet are secured on the pedals and you have your hands on both handles, start moving your feet forward. The elliptical will begin to move and your rhythm will follow an elliptical pattern....