“Although the initial pace is set at the beginning of an event in a feedforward manner, no event or internal physiological state will be identical to what has occurred previously. Therefore, continuous adjustments to the power output in the context of the overall pacing strategy occur throughout the exercise bout using feedback information from internal and external receptors. These continuous adjustments in power output require a specific length of time for afferent information to be assessed by the brain’s pace control algorithm, and for efferent neural commands to be generated, and we suggest that it is this time lag that creates the fluctuations in power output that occur during an exercise bout.”
The role of information processing between the brain and peripheral physiological systems in pacing and perception of effort.St Clair Gibson A1, Lambert EV, Rauch LH, Tucker R, Baden DA, Foster C, Noakes TD.
This paper shows an example of how the Central Governor Theory of Fatigue has stages of control of power output.