Vo2 workouts are definitely the ones I struggle with the most and I’ve experimented with a few approaches - short/shorts, long low (106%) and recently, hard starts. When I first tried vo2, all I did was try to maintain the power target - typically 120%. Then, on researching it seems like power is j…

As long as your HR is above 90% of VO2 Max it is. I’m reading the hard start thread and I’m getting that these intervals are based on HR. Isn’t VO2 Max a measure of HR? Edited; Isn’t VO2 Max determined by HR? Meaning to know you’re getting the correct stimulus (above 90% VO2 Max) don’t you monitor…

[image] Aplcr0331: Isn’t VO2 Max a measure of HR? Nope. [image] Everything to Know About VO₂ Max VO₂ max is a good benchmark for measuring your aerobic fitness levels. Learn how VO₂ max is measured, how you can increase it, and its training benefits.

That’s what I took away from that as well - it’s oxygen uptake, but hr is a better proxy for it than power. I’m not sure if pushing over ftp has some sort of effect on the muscle that’s important as well and dropping below ftp negates that :person_shrugging:

[image] trebor: Is this still vo2 max training? It can be. Here is data proving it…from my thread on the anatomy of a 15 minute Vo2max interval. This is an example where measured O2 consumption stays at or near vo2peak for an extended period of time even though work rate stays (for t he mos…

Right. It appears (I’m probably wrong) that the goal is to stay above 90% of VO2 Max at HR. Hence the hard start to spike the HR and slow decline of power to keep HR up but the power decline assists in prolonged time spent within that desired stimulus (above 90% VO2 Max HR). I’ll keep checking that…

[image] trebor: That’s what I took away from that as well - it’s oxygen uptake And for that reason I find breathing to be the best proxy. Locomotive breath. Breathing like a fish out of water.

This is why I’ve started to shy away from using erg mode. I can let my power dip whilst still doing vo2.

[image] WindWarrior: breathing to be the best proxy. If you feel like you’re drowning, you’re probably at 95% VO2peak or greater. If you’re not used to it the next day your intercostals will be sore. If you’re going to attempt these extended hard start VO2max intervals it helps to mentally …

Locomotive breath is just below drowning. Maybe ~90% VO2max :man_shrugging:

Is it vo2 max if your power drops below threshold?

Training

bobw January 22, 2022, 3:27pm 2

I imagine there’s a lot of info in this thread - https://www.trainerroad.com/forum/t/hard-start-vo2max-intervals/48175 from memory (it’s a while since I delved into it) there was some quite heated discussion!

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Is it vo2 max if your power drops below threshold?

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Is it vo2 max if your power drops below threshold?

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