Originally Answered: Do you lose weight faster by working out if you have a naturally high metabolism?
Addendum: Most of the answers here assume your question was "Will you lose weight and will your metabolic rate go up if you exercise?" To which I say YES. BUT this is not what you asked. (To all people who answered this: It always helps when you actually read all of the question's details and don't assume one thing because it sounds right).
You asked if you lose weight faster than someone doing the same workout if you happen to have a higher resting metabolism. And to this I say...
No. Let's say you have a metabolism in a resting state that is higher than someone else's. Say you are person A and she is person B, and I will arbitrarily give you 1.5 units of "metabolic rate" and her just 1.0. Now assume we put both of you on a workout regimen where you both run 1 mile every day, but everything else is left as is.
The only difference in caloric output here from the initial time is the workout regimen of 1 mile. But caloric expenditure is based not upon your internal metabolism but by simple physics: Force*Distance= Work=Energy=Calories.
The force is your muscles pushing against the surface of a track or the ground, and you can calculate this over the one mile distance to gove you the work output in Joules, and then convert to kCalories. It is very likely that over 1 mile both you and person B expend about the same amount of calories.
So starting from time 0, in a month, assuming you and B do the same workout, you will have expended thesame extra amount of calories in working out. EVEN THOUGH you have a higher metabolic rate at rest, you do not expend additional work.
In fact, let's look at it from a common sense point of view. If you have bigger muscles and you do the same workout, if anything, you expend less energy per unit mass but you have larger mass of muscle, so in the end it all evens out.
Caloric output is pnly based here on physics and not your inherent metabolic differences.
That said, why would people want bigger muscles? Because more muscle means more calories burned, but that is only for a resting state and not when doing exactly the same workout.
See what I mean? If not, email me and I will explain.
Therefore, if I have your question right, you are asking a rate question here, which is whether or not you burn MORE calories even when doing the SAME workout regimen someone with a lower metabolic rate is doing.
I think some people's answers are good but for the wrong question. If you had asked "Do you burn more calories if you work out?" then YES of course that is true. But as far as I understand it, that's not what you are asking. You are asking that if you do the SAME workout another person does, where the only difference is the resting metabolic rate, do you burn more calories, to which I'd say NO. Have you ever seen those workout machines that calculate caloric expenditure? Notice that they don't measure your metabolism at all. They "know" how many calories are burned by using some internal formula based upon physics and not biology/metabolic rate.
Again, to reiterate:
YES, you burn more caloies- and increase metabolic rate, by working out.
YES, bigger muscles burn more calories even at rest.
NO, you do not burn more calories than someone with a lower resting metabolic rate by simply doing the exact workout, because the calories burned in a workout have to do with energy expenditure, and you are doing the same work, and therefore the same energy is expended.
Basic physics folks, go back to school if you can't understand this simple principle. Same work, same energy. You can't get "more work" (i.e. calories burned) doing the "same work:". Duh.
If you pick any of the other answers as best either you asked the wrong question (i.e. you meant "Do I burn more calories and does my metabolism rise if I work out?" to which of course the answer is YES) or you were misled by a bunch of dropout bozos who have never taken a day of physics in their lives.