Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Is being fast at a high bodyweight genetic? Like nfl players who are 5 10 220 who run 4 4 40s?
1 Answer
Relevance
- Anonymous1 week ago
To some extent.
Anyone can increase their fast twitch muscle fibers and improve their speed.
If you take someone completely unathletic like Tom Brady. He runs a 5.3 40. He could probably get down to 4.5 if he trained for it for several years. Maybe 4.4. He won't ever beat Usain Bolt though no matter how much he trains.
Still have questions? Get your answers by asking now.