Which is better? Doing a workout on an elliptical or doing a workout on a treadmill? There are benefits to both. They both are the top cardiovascular exercise machines to be found in the gym. Running is a great form of exercise either outside or on a treadmill. However, it can have an impact on your joints especially if you have any knee, hip or an ankle problem. That’s where an elliptical can come in. Elliptical can also be a great workout and you can burn a ton of calories but with less stress on the joints.