Why does everyone always say that altitude acclimation makes Zone 2 feel harder initially, but no one can actually explain the physiological reasons behind it? Is it because were all just too busy suffering on our bikes to care about the science, or is it because the real answer is that our brains are just too oxygen-deprived to understand it?
I mean, think about it - were talking about a phenomenon that affects every single cyclist whos ever tried to ride at high elevation, and yet the best explanation we can come up with is its just harder, okay? Thats not exactly the most satisfying answer, especially when youre gasping for air and wondering why your legs feel like lead.
So, lets get to the bottom of this. Whats actually happening in our bodies when we ride at high elevation, and why does it make Zone 2 feel like a death march? Is it the decrease in oxygen availability, the increase in lactic acid production, or something else entirely? And more importantly, how can we use this knowledge to actually improve our performance at high elevation, rather than just suffering through it?