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I have a bunch of devices that try to report various health metrics (e.g., heart rate variability , VO2 max, calories burned) and in most cases they have no direct way of measuring that. I'm happy to use proxies, but I would really like to see on of these graphs for each one. twitter.com/pkedrosky/stat

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A fun one is the Apple Watch VO2 max estimate. As far as I can tell it’s anti-correlated with my actual cardio fitness (the better I’m doing/the more I work out the worse it thinks I’m doing).

Nicholas Schiefer

@nschiefer

Replying to

@AdamSJermyn

Argh. On one hand, measuring VO2 max without something strapped to your face is really hard. On the other hand, a sufficiently broken metric probably does more harm than good.

11:20 PM · Aug 4, 2021Twitter Web App