Peter Attia· MD
those fibers require specific types of training in less you specifically do that you just don't have any chance of those tissues the other tissues aren't as uh like hypertrophy hypertrophy is pretty non-specific in terms of your training application but if you want to make sure that you're targeting fast touch fibers like this this requires very specific protocols or or like you have no chance fast slow touch fibers are going to get activated with any activity of daily living they're going to get activated with any amount of physical experience whether you're doing intervals zone two zone six that doesn't matter right Zone 28 pick whatever you want so that are good it's the fast switch fibers that require intention and that's why I yeah I make such a big deal of it because you can't accidentally get those