Unlike the tape or step, the elliptical has the advantage that working simultaneously as both the upper legs, increasing the burning of calories.
The physiological responses associated with elliptical exercise were nearly identical to the tape or running exercises are similar in terms of number of calories consumed and for producing cardio-respiratory health. Altena, T. University of Missouri-Columbia.
In short, speaking of calories burned elliptical help us burn the same amount of fat that if we run the same intensity and duration, with the advantage that they avoid further injure us the possibility to have provided in support feet, especially knees, ankles, hips and back are those who suffer most when running.
If the range of movement of the elliptical be increased by increasing the stride, we would increase considerably the number of calories consumed. This is already being seen in the new gym, with the addition of elliptical machine that leaves more freedom of movement.