These are all valid thoughts, but the whole “talk test” thing is a different thing.
As you kind of hint at, there’s not really a great description/definition of what it is. I do think it has value though if people can use it.
I’d like to pick up a lactate meter, but the costs don’t make sense. I’m able to use RPE, HR, Power, and breathing/talk to work out pretty well where my limits are.
Moxy seems to be gaining some traction finally. Andri Feldmann is doing a ton of research with the device, too.
I was eyeballing the device for a few years before I bought a 3-pack. They’re fun to play with and pretty easy to use. It’s a shame there aren’t more places you can rent one. I’ve considered renting mine out since I know I would have liked to “try before I buy” when I was researching them.
Here’s an example chart from a ramp I did in February. It’s pretty busy, but gives you an idea of what you get. I was lazy and put the Moxy’s all on working muscles. It’s better in my opinion if you put one or more Moxy’s on non-working muscles so you can see oxygen desaturation from you body farther away from the working muscles.
So this is me reaching a lot, but it’s Saturday night on the internet so why not: all of those guys have athletes at varying levels. Using NIRS regularly these days is cost prohibitive, as you say. But not for pros and near pros who aren’t paying for it. Neal has more pros than the other guys on the podcast. No doubt wahoo has some devices laying around as well. And who knows, behind the scenes I wouldn’t be surprised if he was chummy with a NIRS device maker.
My point is just that he is likely the guy within that group who has been dorking around with it the most and ALSO has more of an interest in touting it. The guy who has been using it a bunch that I would love to hear is Steve. I think that would be a good podcast.
Thanks all for the summaries. So then am I correct in thinking that tempo is zone 3 in a 7 zone model? For instance this
3 Tempo / Sweetspot 84-94% 76-90% 20 mins to 1 hour
Zone three – tempo / sweetspot
Heart rate (% of threshold HR) – 84 to 94%
Power (% of threshold power) – 76 to 90%
Typical duration – 20 minutes to one hour
Breathing is getting sharper now with more concentration required to maintain the effort. It’s harder to talk and starting to feel uncomfortable.
Consecutive days of zone three training are possible but fuelling is important, especially if you are doing back-to-back days. The duration of zone three blocks depends on the intensity and experience of the rider. The lower end of zone three is known as [tempo]
For some individuals it there is an overlap into low tempo (but it is not a given.) The highest I think I have seen anyone post that has used lactate measurement the top is about 40% into Coggan Z3 i.e about 82% of threshold. However, imo, and others have pointed out, you shouldn’t back calculate from something like FTP as then you are using an estimate of an estimate, which could be totally wrong and pretty meaningless.
So, has Iñigo commented on the fact that one of his own collaborators showed that “raising blood lactate to 3.5-4mM neither suppresses lipolysis nor increases overall carbohydrate oxidation during exercise in humans”? Thought him and the proponents of his theories would have at least a slight interest in that.