Does training in zone 4 actually improve aerobic efficiency over time, or are people just convincing themselves that theyre getting faster when in reality theyre just getting better at suffering.
Is there any real scientific evidence to support the idea that zone 4 training is more effective at improving aerobic efficiency than other types of training, or is it just a myth perpetuated by coaches and athletes who dont know any better.
It seems to me that a lot of people are just blindly following the conventional wisdom that zone 4 is the magic zone for improving aerobic efficiency, without actually stopping to think about whether or not its really the most effective way to train.
Can anyone point to a study or a piece of research that shows a significant improvement in aerobic efficiency as a result of zone 4 training, or is this just another example of the cycling communitys tendency to cling to outdated and unproven training methods.
And if zone 4 training is so effective at improving aerobic efficiency, why do so many professional cyclists seem to spend most of their time training in other zones.
Is it possible that the idea that zone 4 is the key to improving aerobic efficiency is just a myth, and that other types of training are actually more effective.