Hacker News new | ask | show | jobs
by nradov 2016 days ago
Even for running without a power meter a Garmin device can give you a fairly accurate VO2max estimate if you do an occasional max effort time trial. But it has to be on a flat course: the FirstBeat Analytics algorithm doesn't account for hills. I have had a real VO2max test with a breathing mask on a treadmill and the results were very close.

https://www.firstbeat.com/en/science-and-physiology/fitness-...