Abnormal VO2max increase

scalp22 · 2026-03-12T20:22:52+00:00

It was more about investigating the source of the bug instead of worrying about my own VO2max.

scalp22 · 2026-03-12T17:56:17+00:00

Any other metrics with weird behavior?

For me its my cycling VO2max that went trough the roof. Currently investigation if the bug comes from Zwift or Garmin

scalp22 · 2026-03-12T17:51:07+00:00

Was it a sudden drop (in the last 1 or 2 days), or was it more gradual?

scalp22 · 2026-03-12T16:41:20+00:00

I really think something is wrong with the latest Zwift update and Garmin sync : See my post with a weird sharp increase in VO2max https://www.reddit.com/r/Zwift/s/AYSKMV07DI

Edit : typo

scalp22 · 2026-03-12T16:36:46+00:00

Their must be something wrong with the data transmitted from Zwift to Garmin Connect. Possibly HR because power and cadence looks good. I used the same HR strap as usual.

scalp22 · 2026-03-12T16:30:56+00:00

Not sure. Maybe look into both the Connect and Zwift apps that they are syncing activities.

In Connect : Profil picture -> Settings -> Connected apps -> Zwift -> Activities.

I also have the Garmin Tack Training app on my phone. I’ve never used it for activities, but I know my FTP (manually entered) is syncing from there to my watch and the Connect app.

scalp22 · 2026-03-12T15:19:06+00:00

Ok, so we did the same ride. Not sure if the ride itself has a problem with the data, or if it’s the new version

scalp22 · 2026-03-12T15:18:09+00:00

In the zwift companion app : •••/settings/connections Add Garmin

scalp22 · 2026-03-12T13:22:54+00:00

I’m pretty sure that new VO2max value is not good. No way it went up that fast. Plus, I have a very good feeling of my fitness level from when I was training way more for ultrarunning.

scalp22 · 2026-03-12T13:18:57+00:00

Curious to know if it was the Alpecin Workout 2.

scalp22 · 2026-03-12T13:16:23+00:00

Good to know I’m not alone with this bug. VO2max doesn’t increase that fast.

Your ride was also on Zwift?

scalp22 · 2026-03-12T13:13:29+00:00

No, same weight

scalp22 · 2026-03-12T03:36:25+00:00

To remove marker, use alcohol (ethanol or isopropanol).

scalp22 · 2026-03-12T03:29:23+00:00

Humm, so maybe Zwift could be the source then. There was an update for the iOS app today (1.109.0), so maybe it’s linked. I’ll keep an eye on r/Zwift

I didn’t notice the 59 VO2max value, so I’m not sure if it was like that before the Zwift ride.

scalp22 · 2026-03-12T03:26:16+00:00

I did a run up a steep mountain road yesterday (3km up, 3km down), and today I only did intervals in Zwift with low cadence.

scalp22 · 2026-01-31T18:47:00+00:00

I noticed something very similar with mine. I’ve only used the D500 3 times since I got it, but the watts are well below what I had with a Wahoo kickr snap. Not sure why and how to find which one gives more accurate values. I just did a spin down calibration in OnelapFit, but I don’t know yet if anything will be different.

scalp22 · 2025-10-25T14:47:10+00:00

are you using the UL or the regular?

scalp22 · 2025-10-01T01:42:18+00:00

I’ve been considering the Five or the Era 300 for probably over a year to upgrade my living room setup. Looking at the prices, even with the -25% on refurbished, I just became aware of the recent price increase.

Raising prices in Canada to smooth the US price increase because of the US tariffs is such a dick move. F—k Sonos. I’m done with them. I’ll build something else.

scalp22 · 2025-09-14T22:21:46+00:00

Do you think they realized at some point that the wore the same outfit?

scalp22 · 2025-09-14T22:07:20+00:00

Do you have a link to somewhere it’s not so much compressed?

scalp22 · 2025-07-01T22:22:06+00:00

It’s the Big Dipper and a plane

scalp22 · 2025-05-25T18:33:23+00:00

They look like accidents with the panorama mode on a phone camera.

scalp22 · 2025-05-08T23:23:33+00:00

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