Im seeing more and more people talking about Zone 2 training as a way to improve time trial performance, but Im still not convinced its worth the hype. Can someone explain to me how spending hours riding at a relatively low intensity is supposed to translate to faster times in a high-intensity event like a time trial?
I get that Zone 2 training is supposed to improve cardiovascular fitness and increase lactate threshold, but isnt that just a fancy way of saying its good for endurance rides? How does it specifically help with the short, intense efforts required in a time trial? And what about the idea that you need to train at the intensity you want to compete at? Doesnt that mean that if you want to get faster in a time trial, you should be training at or near your time trial pace, rather than cruising along in Zone 2?
Ive seen some coaches and trainers recommend doing high-intensity interval training in addition to Zone 2 work, but isnt that just acknowledging that Zone 2 training isnt enough on its own? And what about the risk of overtraining and burnout? If youre spending hours every week riding in Zone 2, arent you just setting yourself up for a crash later on?
Im not trying to be contrarian here, Im genuinely curious about how Zone 2 training is supposed to help with time trial performance. Can someone explain it to me in a way that makes sense, or is this just another case of the cycling community latching onto the latest fad without actually understanding the science behind it?