When exercising, does the amount of effort determine calories burned or the actual work being done?

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Will an athlete who runs for an hour at moderate pace and is not tired at the end burn more calories than an out of shape person who runs for an hour a way shorter distance but is exhausted at the end?
Assuming both have the same weight and such

What I want to know basically is if your body gets stronger will it need less energy to perform the same amount of work?

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Anonymous 0 Comments

There is currently a study being done in Ireland sort of related to this, essentially the idea being investigated is, a person is on a bike for 60 mins in a high gear (lower rpm but more effort) and a person is on a bike for 45 mins in a low gear (higher rpm lower effort) , the work being done by both is the exact same but for an unknown reason the faster RPM cyclist is using more O2.

The candidates all had maximal VO2 tests to ensure they were fit enough. The number of revolutions were calculated to be equal. The bikes were watt bikes indoors. Basically the only variable was the resistance on the bikes.

I dont know the outcome and its a bit of a tangent to your question but the answer should be that O2 required should be the same but it isnt and they dont know why.

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