How to choose an elliptical

Budget and midrange models can usually be found at Sears, Sports Authority, Walmart, and other discount and sporting-goods chains. Shop at sporting-goods specialty stores for the moderate to high-end models. Important factors to consider include these:

Dimensions

Elliptical exercisers are generally about the size of a small couch, but they can vary. The Stamina Avari GX8, for example, is a massive machine that demands 8 feet of floor length during use. Don't forget that you'll need extra space around an elliptical to safely get on and off. Some models can be folded when not in use. Also pay attention to the vertical space, especially if you have low ceilings, since you'll be elevated on the machine.

Ergonomics

You should never feel discomfort in your knee or hip joints, and your knees shouldn't bump the frame or handgrips. The moving handgrips should not force you to lean uncomfortably forward or back. An adjustable stride length feature may help you find a more comfortable position.

Watch the warranties

Look for one that provides two to three years of coverage on major moving parts and a year for labor. Survey data on the probability of failure and repair costs have shown that extended warranties are probably not a good deal.