Elliptical trainers mimic the motion of walking or jogging, depending on your speed. However, they are much easier on your ankles, knees and hips than running or walking on pavement or on a treadmill. When comparing elliptical trainers, evaluate how frequently you will use the machine and where you will position it to ensure you have sufficient space for the model you plan to purchase. MayoClinic.com recommends elliptical trainers for an all-over low-impact workout.
Features
Elliptical machines have a number of critical components. The foot pads should be large enough to accommodate your feet with sufficient space around your foot to avoid pressing against the side, which is a potential fall hazard. Standing on the foot pads, you should be able to stride comfortably. An elliptical also includes a flywheel that can create further resistance to make your workout more difficult. Some also have poles that you can use to stabilize yourself when getting on or off, though their primary function is to involve your upper body in the workout, increasing the effectiveness of your cardio workout. More expensive models include computer programs that offer a variety of workouts. Almost all models also include a digital readout that lets you know how far you've traveled in your workout and the time spent working out. Some models also include a heart monitor, though these tend to be available on more expensive models.
Considerations
Consumer Reports states that you should always try an elliptical trainer prior to purchase to ensure it suits how you move, which can be difficult if purchasing online. In particular, Consumer Reports suggests that price is not always a guarantee of quality. While more expensive models typically have more options, not all are stable when you run on them.
Price
Budget ellipticals can be found for less than $1,000 as of 2010. However, these may not have the options you need or provide the stability necessary for a safe workout. In addition, most lower-cost ellipticals have a shorter warranty, which can be important if the machine breaks down. More expensive ellipticals are typically over $2,000. They typically have longer warranties, more computerized exercise options and other options that make the machine more useful. These machines may also have a more smooth stride motion and feel more comfortable when working out, states Consumer Reports.
Size
Most elliptical trainers are quite large -- between 5 and 7 feet tall -- to make room for the pedals to clear the floor when in motion. When you're standing on the elliptical, you need sufficient clearance to include your height in determining where you put the machine. In addition, the base of most ellipticals is quite large -- about 4 feet by 5 to 7 feet. Ensure you have sufficient space for the machine, especially if it has moving poles that you use when working out.
Benefits
A 2004 study published in the "Journal of Sports Medicine and Physical Fitness" tested moderately active women on three types of equipment -- stair climber, elliptical and treadmill. The women were randomly assigned to a machine and trained for 12 weeks. They started training for 30 minutes at 70 to 80 percent of their maximum heart rate and ended the program training for 40 minutes at 80 to 90 percent of their maximum heart rate. No significant difference was found in the benefits of using one machine compared to another. However, all groups showed significant improvement in their cardiovascular conditioning. The findings of the study suggest that one machine is not superior to another; the critical element is working out to improve your health.
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