24 Comments
Feb 7Liked by Dr Paddy Barrett

I've read plenty about stroke volume in the 40-60% range, but never heard the (very important) bit about it decreasing above 60%--great point for us exercise enthusiasts to keep in mind.

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Feb 7Liked by Dr Paddy Barrett

Super!

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Feb 8Liked by Dr Paddy Barrett

Been guilty of neglecting Zone 2 for years. Old school training ethos hadn’t served me well !

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Feb 7Liked by Dr Paddy Barrett

Such a good article! Very informative and also practical. Thank you!

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Feb 7Liked by Dr Paddy Barrett

What do you think about the accuracy of devices like Apple Watch?

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VO2 max has become a talking point on health/life span. This is along the lines of Peter Attia's stuff. I wrote about VO2 max myself recently too. It's a fine goal. I felt that rather than people obsessing about some new number itself, getting some regular cardiovascular exercise along these lines and seeking to build more subjective fitness is a big start for many. Trying to convert "average" people into athletes effectively, at least in some form to get the benefits of this is the tricky bit.

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Feb 15Liked by Dr Paddy Barrett

Interesting article.

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Why is everyone so fixated on longevity and trying to find scientific ways to increase lifespan? I'm happy to do everything in moderation, including fitness, without trying to endlessly measure outcomes and just enjoy the journey without getting fixated. Nothing will give a guarantee that I don't die early of an infectious disease, cancer or some autoimmune problem and there are no guarantees that I won't get dementia either. The world is "going to hell in a handcart" and you're worrying about VO2 max!? I'm not.

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Really interesting post! Question though: my understanding is that V02 max level for individuals is largely genetic, and that training can create improvements of only 5-10% in most cases. Not true?

(I’m a runner and did a proper V02 assessment at a sports clinic a couple years ago. Big fan of interval running.)

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Hi, thanks for your article.

When you say 40 to 60 % of Vo2max, is it the same that 40 to 60 % of maximum heart rate?

Thanks

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It would be interesting to learn the VO2 of Blue Zone citizens. Given all their walking up and down hilly terrain everyday it’s probably up there.

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Nice post. Do we have any idea how reliable the Health app or apple watch are at estimating VO2?

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Great article. I have also written about V02 max. Most people believe that walking is sufficient to improve cardiovascular fitness but your heart rate is not that high when walking.

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