For those who want the benefits of running but, without the strain or wear and tear on joints an elliptical fitness trainer may be just the right thing. Many gyms offer these machines; get your cardio work out while saving yourself strain and pain. You can even find an elliptical machine to use in the privacy of your own home. Most machines you find, you'll be able to work out from beginner to expert by changing the amount of resistance and by incorporating arm movement. An elliptical machine is a good investment whether you're just starting out exercising or are a pro.