Two different models (the homeostatic failure–limitations (A.V. Hill) model and the anticipatory regulatory model (central governor model) are currently used to explain human exercise performance.
While googling around I noticed that none other than Joe Friel also does a breakdown of this article in his blog. I guess I'm in good company
reference: Noakes, T. D. “Time to move beyond a brainless exercise physiology: The evidence for complex regulation of human exercise performance.” Applied Physiology, Nutrition and Metabolism, 2011; 36(1):23-25.