[Nevertheless, your proposition fails to take into account “smooth acceleration.”
Finally, I believe it is important for you to see the difference between perceived TS and actual TS. Do you think if Mo ran his fastest top speed 12.04m/s, he would be able to maintain that for more than 20 meters? On the other hand, if he reduced it slightly (11.76m/s) then maintenance becomes much easier.
PS. Some sprinters are also able to accelerate in the environment of speed endurance.[/QUOTE]]
I think Juggies’s proposition does take this into account. Remember that he suggests we need to rethink our definition of “speed endurance”. The most appropriate definition, I think, is that speed endurance manifests itself only once your highest speed is reached. Whether you accelerate “Smoothly” or all out, whether you hit your top speed or a “relaxed” max makes no difference. While relaxing might lengthen the distance over which you run at your “highest” speed, you must still, nevertheless, reach and subsequently maintain that high speed. The speed might be distributed more evenly, but the (non-wasted) energy output remains the same
In flo-jo’s case, even if she accelerated smoothly and did not reach her highEST speed, she must still maintain what speed she has. Indeed, she not only maintained it, she IMPROVED it over the last ten metres. In effect, she found a way to delay the need to tap her speed endurance, but she still put forth her best total effort to that point. Her energy output, while relaxed, was the same, only distributed differently, thereby extending her highest speed. Therefore Flo-Jo, along with, according to Scarface, all of John Smith’s athletes, are perfect examples of athletes have found a way to push back the moment when speed endurance becomes a factor.
Technically, "Speed endurance " becomes a factor when you explode out of the blocks: it would have to be or else you’d fall on your face exhausted from your first step. (different energy system, than SE, I know, but still part of the energy store “continuum” that you deplete throughout the race) But this is of no practical use to us. To distinguish between top speed (where max speed learning opportunities exist) and speed endurance (where physiological adaptations occur that threaten to disturb those max speed learning opportunities) YOU MUST LOOK TO WHERE SPEED DECREASES. Only then would you truly be looking at the phase of the race when trying not to slow down is the objective.
Thoughts?? I Know not everything is as obvious to some as to