You're article is ...actually kind of sound. It's your implied interpretation I have the problem with.
Good example of what I'm talking about. It's not just them who use those fibers during such activities, it's everyone. But what's MORE important is that they already HAVE more (provided they excel particularly well at what they do compared to the mean population).
Long distance runners, swimmers, and cyclists mostly use Type I fibers.
It's also hard to take it seriously when one uses terms of physics incorrectly. Muscles don't produce power. It's an altogether moot point to even mention watts, or horsepower when speaking of internal conditions. Yes, from a body's end-point to the physical mass which it MIGHT move; that can be measured in such terms, but not the process which initiates it. Muscle contraction is a bio-chemical process which doesn't have to neccesarily result in ANY external movement.
The quicker it fires the more power it produces.
Yet, this isn't a bad example of how it happens. This goes with the grain of what I just said. You, however, think it's desirable to consciously by-pass those fibers which you feel don't need to be trained for general application.
An Example Of How Your Muscle Fibers Are Recruited
No disagreement here. It says powerlifters are brutally strong for this reason. What they fail to add is that they are brutally strong, and honed to a razor's edge for those 3 specific lifts. I, for one, can't think of any sport (other than powerlifting itself) which is "maked or breaked" by being able to undertake a perfected high-bar squat. However, it would behoove them to have more metabolic ability (which CAN translate into greater force and mechanical work) which applies to EVERY movement even if it means not having a razor sharp 1RM squat. See the difference? The increased neurologic efficiency is VERY TASK SPECIFIC. Who CARES about squatting skill in a sport?
Low repetition work (in the 1-5 rep range) provides an extremely unique adaptation. To overcome the weight, your body must recruit as many motor units as humanly possible. This will cause your nervous system to become more efficient at this process. Over time, you will learn to lift the heavier weight with all (or close to as possible) of your motor units in one rep. Powerlifters are brutally strong for this reason. They can basically make all the their motor units fire at once.
Yet, in a higher rep (TUL!) set, the coveted fibers are STILL recruited and fatigued. Go ahead and recruit all those muscle fibers at once for the squat...I hope you're called upon to squat an opponent.
Strength gains in the 1-5 rep range can take place without muscular hypertrophy. This doesn't mean that growth cannot occur at these junctions. It just means that growth is not the optimal method of adaptation in this zone. This is for two reasons. First, although more motor units are recruited at once, low repetition sets cannot recruit as many muscle fibers as in a higher repetition set.