Peter Attia· MD
if you find somebody with a high percentage of 2x fibers um something on is is going on The Only Exception here is there's no data really on truly fast people we have a lot on powerful people we have a lot on kayakers and bodybuilders and weightlifters but as we discussed at the beginning that's actually not true we don't have data on sprinters no why great question it's hard to get these folks in the lab I guess um people interested in it it's not a thing we just don't have them the only thing we have is there was a case study there's a case study done on a a guy who I think he still owns a world record um it's not hard to figure out his name though I can't technically say it um 110 meter hurdles I think and 60 meter hurdles at the time had the world record in both I think still has one of them um he's the only one I know and I actually uh I was a graduate student at the time so I didn't run the study but certainly had my hands on fibers plenty of times um and he had something like 24% Pier 2x fibers