The Origins of the Two by 20 Workout

The canonical two by 20 minute FTP workout has entered cycling culture. Andy Coggin was talking about going and doing a five minute loop four times, then he would do one time rest and then it again. So that may or may not be the origin of the two by 20 workout. Kyle: Do you think people have the impression that doing longer than a 20 minute effort is is too difficult or it's going to be too fatiguing? We're going to talk about how to progress all that kind of stuff today.