well, 'drive phase' has existed for as long as anyone has been running from a stationary position.
All I am saying is that there are a lot of bogus and implausible reasons given when people basically come of no where and then redefine the all-time lists and records.
You do the maths and physics for yourself. Think about what I said about F-1 cars, etc.
I believe that God has made man quite amazing and that men can run very fast, but it still has to make SENSE!!!
(Also, please save comparisons to Jesse Owens...cause I would bet money that Jesse bent down after he won some races and didn't go straight to do TV interviews not breathing hard while his competitors who ran nearly 1 sec. slower were on the ground gasping 4 breath!!!)
Don't ask me...just think it through...