Waterloo Sunrise said:
Saying V02 max is unaffected by weight because it's expressed in per kilo terms is one of the best examples of 'they walk among us' (the idiots) that I've seen in a while.
If Froome doubled his weight you think his V02maxperkilo would be unaffected?
Doubling weight is an extreme, pathological example. As JS notes, riders are close to the limit with their V02max/kg values. It will fluctuate as the rider goes offseason and maybe gains weight, but once his career is established, he should be pretty close to the limit. That’s why we can have records of this value, and speak of some rider having a certain value. If it were that easy to raise it by losing weight, the term would lose its usefulness as a way of comparing different athletes.
If Froome lost 4 kg, he might improve it a little, but it’s unlikely his V02max (not expressed per kg) would be unaffected. If he could really do that, it doesn’t speak well for his training prior to that weight loss. Sure, you hear about riders coming into the season and saying they have to lose so many kilos to reach top form, but that is to reach some limit. Getting beyond that is very problematic.
If you disagree, I invite you to provide examples of riders or other athletes who significantly increased their V02max/kg values over the course of their careers. Any who did were very likely doping.
I'll agree, though, I shouldn't have mocked Froome. In fact, he himself in that quote expresses doubt that he could have raised his V02max by losing weight.