excercise

I have heard that you burn approximately the same amount of energy walking a given distance as if you ran it. Obviously, you walk for a longer time so burn off more calories whereas running burns energy at a higher rate for less time.... the balance being equal. Is this at all true?

I thought about posting this in the sports section, but: A) I think this is more to do with medecine B) this section has more traffic I like to keep fit, but over the years I've heard many things concerning exercise which I'm not sure about. Much of the information I've found seems to be...