Originally Posted by Autumn Gold
... are calories burnt through exercise still the same regardless of what the exercise is that you are doing? Or should you take a few calories off if the exercise is less strenuous?
I calculate my calories via a Polar monitor (they're pretty reliable.)
The number of calories you burn during exercise is determined by your heartrate, regardless of the type of exercise you're doing. Let's say that your average HR while running is 150 and your average HR while on the elliptical is 150 and your average HR while doing step ups is 150. That means that you are burning the same number of calories per minute doing each different exercise, regardless of your perceived level of exertion. So yes, the calories burnt through exercise are still the same regardless of what exercise you're doing.
Your HR already determines how strenuous the exercise is, so there's no need for you to subtract calories burned from your HR monitor. You probably don't get your HR as high when you're walking as when you're running, so the calories automatically won't be as high. No need to adjust.
One caveat: your HR monitor tells you about your calorie burn while
you're exercising. What it doesn't tell you is how your metabolism is affected after
exercise. Studies have shown that lifting weights can elevate your metabolism for more than 24 hours through a process called EPOC (excess post-exercise oxygen consumption). A HR monitor can't tell the whole story about exercise and calories, though it's a pretty good indicator of what happens while you exercise. So don't forget to add some weight lifting to your exercise program!