Diminishing returns & Exercising?

[M4TR1X]

Just wondering if there are any data or numbers on just how much efficient the body becomes at an exercise, cardio wise. Any links would be appreciated.

 

[Steve]

You can have a look at this article:

 

[M4TR1X]

You can have a look at this article:

Thanks! This was exactly what I was looking for.

 

[harlan]

Excellent article!