Looking back over this thread I caught this.
It’s funny, your post would seem to indicate that you’ve forgotten of the atrocities that exist at the S&C as well as ‘combine/pro day’ coaching level in this industry.
If you question how 6-8 weeks of one thing could negatively affect 2 years of another- think again.
I would wager that one single exposure to a run of the mill ‘conditioning’ workout that is conducted at most D-1 institutions would render Bolt incapable of running sub 10.5 for a week or two.
That is an extreme example; however, you might also be shocked to know that I have first hand information of at least one combine/pro day prepatory camp that includes ‘running’ drills of that exact same character. Two years in a row I’ve had athlete’s sent there by the same agency and I test them prior to their departure and again when they return.
Both years the guys returned slower and less explosive then when they left- by a significant margin.