Star star star it’s clear if I was running it would be a he’ll of a lot quicker than you! Lol
I have no intention to personally argue but to only explain a concept, as for Newton you may need to read up again
Velocity of a body constant etc etc blah blah
First thing, overspeed does not increase the body ability to apply horizontal force either during or upon release!
On initial release the sprinter is able maintain the achieved speed momentarily, why? Not because they are able to increase there normal level of horizontal force!
And as you have stated correctly, elite sprinters can produce larger vertical force but don’t use!! Yes?
So at this increased speed, they are now able to utilise there vertical potential and maintain speed.
So in this context horizontal ACCELERATION is very paramount to the development of potential top speed at which point it’s the vertical that is dominant in order to maintain the horizontal
As I think everyone has agreed horizontal is a key factor and in some a limiting potential, however it is the ability to maintain through vertical force production at top speed
Mortac is correct, though I think the correlation is from research using static stretching. I will try find the reference to isometric though as I can’t at the moment remember the actual research phrasing.
However of note, during sprinting, more muscles than you realise act in an isometric manner!!!!!!
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