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(stevejones @ Sep. 01 2006,01:08)</div><div id="QUOTEHEAD">QUOTE</div><div id="QUOTE">It's been my experience that no form of exercise burns as many calories as jogging does.</div>
Apparently cross country skiing uses more calories per min/hour of exercise, but apart from that yeah running/jogging can't be beat, and requires no snow/equipment.
As the elipical mimics a skiiing action, and uses more muscle groups against resistance, I'd say at the same level of intensity/speed the elipical would burn more calories, great thing about running though is you can't slack off while running (without going back to a walk) but on the elipical or bike you can go as slow as you want, so it seems easier. In other words it takes more discipline to burn as many calories on an elipical.
You're right about Dr. Cooper, he basically bags out muscular guys for being aerobicly unfit, and dying young from heart attacks and stuff, but then most weight lifters/BBers would look down on skinny guys who can run marathons. I'm not educated enough to understand and explain the precise process of a muscle "leaning out" as opposed to bulking, Dr. Cooper explains it in his book "Aerobics" but I can't remember it exactly, it has a lot to do with the how much surface area is exposed to the arteries and veins, I believe the basic point is that the muscle "flattens out" through aerobic ex, so more surface area is exposed to vasulature, but through weight lifting it "bulks up" adding muscle in all directions, think of a ball of muscle as opposed to a flat sheet of muscle. Not sure how accurate this description is but hopefully it gives you an image to work with. Of course this could be completely wrong if modern research contradicts it...