There are plenty of cheap elliptical machines available for folks to use to burn calories and get fit. This Bioresponsive Elliptical Trainer is a tad bit smarter. It automatically adjusts its resistant to keep your heart rate in the selected target zone.
All users need to do is add age and select one of the pre-programmed target rates, and the elliptical does the rest. It adjusts the intensity of the workout to keep your heart rate within 5 beats per minute of your target. The machine monitors your heart rate by pulse sensors in the handles. It has 16 resistance levels and 12 preset workouts. As long as you are lighter than 250 lbs, this machine should work for you.