You can get an effective aerobic workout with both an elliptical machine and a treadmill. However, elliptical machines might offer some advantages over treadmills. For example: Using an elliptical machine can be less stressful on your knees, hips and back than is running on a treadmill.

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Cycling or spinning on a stationary bike at a vigorous intensity and cycling an elliptical machine are the best for burning the most calories. A 200-pound person will burn about 1,032 calories in a 60-minute spinning or elliptical workout. Using a treadmill for running can also be efficient.