This article from a more “distance” running oriented site might actually offer some points to discuss here too (where words like “tempo” and “crossover” are often recurring in discussions ).
http://www.powerrunning.com/Exercise%20Physiology/Muscle%20Fiber%20Activation%20part%201.htm
Cool post Pakewi. I don’t think it was anything revolutionary, they just created a controlled experiment to prove the whole humon body-reacts-to-stimulus theory (eeh… there’s a special acronym for it I’m not in physio though so get over it 
). Now maybe that was the assumption going into the experiment and they just wanted to see how specifically the body adapts to endurance type work.
As far as application to sprinting, particularly short sprinting, I don’t think it’s got a huge amount of relavence. A sprinter could utilize the longer easier training in order to aid his faster training, but the most a sprinter would get would be the ability to run more reps. Now considering that a sprinter’s primary energy system is not in the muscles or lungs -as it is with a distance runner- but is quite literally in his head, it wouldn’t matter whether the muscles were prepaired to go for more reps, if the CNS was not ready. I wonder if you could do the same thing to the CNS…
If you have a chance to read around the site the article is coming from, you will find interesting considerations about the real limiting factors for distance events,and, surprisingly,they might not be that far from the brain,quite literally,as from your words…
SAID (Specific Adaptation to Imposed Demand)
I did read around the website 
And I just found a pretty solid high-milage training system backed up with some good science, so what’s new? I don’t think I quite understand your quip, though… “as far from the brain…” distance running=CNS intensive?
Are we talking the same website?
The articles on “Hadd” in the training section are what I"m refering to.
Does anyone knows the true about Dusty Stamer ? I heard something about this guy, that he was a marathon runner and now, at high-schoool, he is running around 10.2 and 6.6 for 60m !!! maybe he is around here and could explain this better for us, cause, there´s a lot of differences between a marathon runner and a sprinter.
Not sure where u heard that but it couldn’t be farther from the truth. Dusty is a senior at Nebraska and played football for the Huskers before the track coaches were able to cinvince him to run track.