
Cardiac output is the primary limiting factor in humans. We know it's not, because at VO2 max, healthy humans do not reach maximal ventilation. If ventilation was a limiting factor of VO2 max, then it would be plausible. I don't see anything else of interest in the "breathing device that gives you wings" space. This might turn into a commercial product, and if it can be had in the €500 range, with cost effective cartridges, then it might be viable. A German company, HypoxieFit, has a patent using some other medical grade oxygen removing material. It was based on replaceable cartridges, much like the Altolab. However that doesn't seem financially viable either as the Scottish company stopped producing theirs a few years back after much fanfare. Intermittent Hypoxic training would seem to be a far more effective choice for a breathing device, as opposed to sleeping in an altitude tent, to increase red blood cell count. Echoing your sentiment, as all the other breathing devices are way inferior to the spirotiger in their mechanism, their results will be so modest as not to be significant. It's a very focused breathing exercise device and it gives you modest improvements, more so if breathing is your limiter, which for most of us on slowtwitch is not the case. There is even a good review on here done many many years ago but it's not a magical tool and it's expensive.

#AIROFIT PRICE PRO#
And again, if these were real - then we'd see them on every pro athlete, sponsored or not. 5% gains is massive if sustained long term (permanently).ĥ% gains for a pro athlete is top of the podium for most sports. If it actually worked, then every single pro athlete in every single discipline would be using one - not just sponsored athletes. My test on the whole breathing device this is incredible simple: The white paper looks like it is trying to be presented as research.ĭcrainmaker wrote:Agree. There are some weird phrases in their white paper like “significant difference†as opposed to what you would see in research “statistically significant†For Los Cabos, she wasn't using it on the bike (DNF'd before the run, so we don't know if she planned to use it). Which races? She wasn't using it at Chatt or Santa Cruz 70.3. What does Slowtwitch think of the science behind this? I don't think I'd ever use one since seems quite difficult to drink/eat and also quite uncomfortable. I was surprised to find that Angela Naeth has been using it during her most recent races. There are some pretty bold claims that it: Aeroyoost wrote:Has anyone else been seeing this used by pros they follow on instagram and targeted ads on social media:
