Ok, I have a question on calorie burning during exercise.
When a person first starts exercising, and they ride 2 miles at 8 miles/hr, they are huffing and puffing and sweating and their
heart rate is way up, etc... Then a month later or two later, with built up strength and stamina, the same person does exact same ride - 2 miles at 8 miles/hr, just broke a sweat,
heart rate is just slightly up, breathing almost normal... Let's say his weight is the same.
Does this person burn the same amount of calories those 2 rides, because their muscles did the same amount of work? Or does the first ride burn more calories, because the respiratory and circulation systems are working so much harder?
I made example with a bike, but my question is really general, related to all the exercise... Hope its clear...
