Everyone has wondered at some point in time which cardio exercise is better. To put it in simple terms, both low and high intensity exercises will help you to burn off body fat. The question here is which is the most effective to burn off more body fat. When scientists first discovered that during intensive exercises, your body ... . If you are just starting out, you'll want to go slow and keep your cardio exercise in track - as it is very easy to over exert yourself.