They're becoming more explosive for short distance burst. Those guys are glorified strength and conditioning coaches with position specific excercises.
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Let’s say your genetic potential is a 4.7 forty with minimal body fat and lots of squats, weight room work and sprinting/agility drills, core work.
However you are not 9-10 % body fat, you really don’t squat much and lack muscle tone.
Of course you can make yourself faster aka reach your genetic potential.
Walter Payton had to run a lot of hills to get as fast and strong as he was.
How many humans reach their genetic potential ? Many don’t. Body fat percentage correlates with many physical measurements of speed j7mping ability.
Will Rogers could really benefit from strength and speed training. He didn’t have the benefit of a redshirt and got thrown into service, but if I was him I’d be working out like crazy.
If Polk decides to stay, he would be better served working on route running or 40 technique. He will not get significantly faster or stronger in the next 6 months. Any gains in mass will initially slow him unless it's carefully managed. And you're still probably only talking 10-12 pounds gained and he would lose half of that doing the season.
Dude has been training consistently for probably 6+ years, he's not changing much at this point. It's not like he's a 17 year old. By the way, Espy and company might help 14 year olds, but they aren't taking guys from 4.8 to 4.3. There busine$$ is making dads feel like little Johnny has a chance to overcome bad athletic genes.
I told you guys 2 months ago Polk was likely to leave. He caught 100 balls in the SEC. He has nothing left to prove. Now he leave school and train for the Combine/Draft. These guys dont care about college. They want to get paid.
SEC training programs are as good as it gets. But these guys get personal trainers and such because they dont want to go to school. They want to focus on training for The League
I think Jake Wim said yesterday on his show that Polk has not signed with an agent. That gives a small chance that he comes back. Once you sign with an agent you are done in college from my understanding.