What is the actual evidence that Zone 2 training on flat roads improves lactate threshold over time, and shouldnt we be reevaluating the conventional wisdom that has been perpetuated by the cycling community for years.
It seems that many coaches and experienced riders swear by the benefits of Zone 2 training for improving lactate threshold, but when you dive into the actual scientific literature, the evidence is surprisingly thin. Most of the studies that have been cited to support this concept have methodological flaws or small sample sizes, and the results have not been consistently replicated.
Furthermore, some of the most successful coaches and riders in the sport have begun to question the emphasis on Zone 2 training, arguing that it can lead to stagnation and plateaus if not balanced with other types of training. They argue that a more periodized and varied approach to training, including high-intensity interval training and strength work, can produce more significant gains in lactate threshold.
Despite this, the cycling community continues to cling to the idea that Zone 2 training is the key to unlocking improvements in lactate threshold. Its almost as if the idea has become a sort of dogma, with anyone who questions it being dismissed as ignorant or uninformed.
So, Id love to hear from the experts and experienced riders out there - whats the actual evidence for Zone 2 training on flat roads improving lactate threshold, and shouldnt we be more critical of this conventional wisdom. Is there a better way to approach training that were not considering, and are we doing ourselves a disservice by relying so heavily on a single type of training.