exercise machines?

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redlinemike said:
When a treadmill tells you that you have burned 1238 calories, what does that mean exactly. Is it in terms of mechanical energy, or how many food calories you have burned? I know that food calories are actually in kilocalories, are the machines the same? Does the body do one calorie worth of work for each calorie consumed, or is there a degree of inefficiency? Basiclly what I am asking is, if I eat a candy bar with 300 calories and then burn 300 calories on the treadmill, am I even?

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I have always wondered that too! :help:

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redlinemike said:
Basiclly what I am asking is, if I eat a candy bar with 300 calories and then burn 300 calories on the treadmill, am I even?

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Yes.

http://health.howstuffworks.com/calorie.htm

You'd actually get ahead, because after a hard workout your body continues to burn calories at an accelerated rate for several hours. :waytogo: