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Analysis of Apple Watch running data

applewatchrunner.substack.com

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Re: Analysis of Apple Watch running data

#161

Post by tluyben2 »

odysseus wrote: post #126
tluyben2 wrote: post #61

Since the watchOS 9 update, I am the most unhealthy person ever. I saw on Reddit people have the same results but it really went mental; I walked into the local clinic for a vo2max as the watch keeps warning me; it (the watch) was 15 points off on the negative side, and so was my blood oxygen; 10% off on the wrong side. It’s pretty scary for a software update…

As a counterpoint, I saw something similar happen after upgrading to watchOS 8 for 7 months, but then I somehow got my vo2max to go back up by losing 5 pounds in 1 month and eating healthier.

Well, so far it made me more healthy as I am trying to change it but it definitely is off from the real numbers as I did an actual vo2max at the clinic here.

Re: Analysis of Apple Watch running data

#162

Post by SSLy »

FearlessNebula wrote: post #140
SSLy wrote: post #72

Earlier quoted context omitted.

> Fitbit I'd rather not excercise than have my health data feed the GOOGL advertising engine, thank you. https://arstechnica.com/gadgets/2022/09/google-will-start-as... Because I do not trust them to uphold the EU rules.

You’d pass up on reduced risk of all cause mortality, reduced risk of cancer, reduced risk of fall injuries, and improved mental health [1]? Just to stick it to Google? Man, get some exercise. If you don’t like Google either don’t use a tracker, build your own, or use one that’s more trustworthy. 1: https://health.gov/sites/default/files/2019-09/Physical_Acti...

Thank you for your compassion, but I already have another tracker (Apple Watch) and am running twice a week.

Re: Analysis of Apple Watch running data

#163

Post by water8 »

ldrndll wrote: post #99
8ytecoder wrote: post #45

Earlier quoted context omitted.

Apple Watch uses the iPhone’s gps when the phone is close by.

This is no longer true for Series 8 and Ultra watches. What I’ve not found out is whether this true of any Apple Watch running watchOS 9 or just the latest models.

Watch will use the phones GPS because it has a bigger battery unless you separate them and then it will use it on

Re: Analysis of Apple Watch running data

#164

Post by sirsinsalot »

Maursault wrote: post #149
sirsinsalot wrote: post #143

Earlier quoted context omitted.

Again, more wrong. Zone 2 HR training induces a different physical response to zone 4. This is proven and measured. Zone 2 training increases mitochondrial function and burns fat. Zone 4 causes glycolysis and so on. These HR zones, reflective of effort, even exercise fast vs slow twitch muscle fibers differently.[1] Having a device to help you stay in the right Zone is very valuable for effective training. Large mirr…

> Again, more wrong. Zone 2 HR training induces a different physical response to zone 4. I'm not sure what you expect to accomplish by using obscure and invented health industry terminology absent from medical science and citing this kind of evidence with a three hour long podcast that I'm simply not going to entertain. Regardless, you have constructed a new straw man argument. My point was far less complicated, whic…

The video I linked was doctors who specialise in fitness doing a literature review of the evidence of what I was discussing as published in medical journals and talking about the actual, medical, biomechanics.

"by using obscure and invented health industry terminology absent from medical science"

"Zone 2 HR" is just an alias for 65%-75% of your max heart rate with Zone 3 being 80%-85% and so on ... very simple, and max HR % is used across the medical profession (along with VO2 Max) [1][2][3][4] ... I could go on and on.

These "zones" are defined by the point at which metabolic processes change. After ~zone 2, you burn more glycogen and engage fast twitch muscles, and this affects cellular respiration differently in terms of performance pay-off. At ~zone 3 the metabolic processes and chemical balances change again, and so on [5]

You VERY evidently have so little idea about what you're actually talking about, at this point I consider it a troll and I won't bother continuing.

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6607712/ [2] https://journals.physiology.org/doi/full/10.1152/physiol.000... [3] https://www.researchgate.net/publication/259652575_From_Hear... [4] https://escholarship.org/content/qt5cz1v976/qt5cz1v976.pdf [5] https://physoc.onlinelibrary.wiley.com/doi/full/10.14814/phy...

Re: Analysis of Apple Watch running data

#166

Post by cogogo »

cogogo wrote: post #73
nmlt wrote: post #47

Earlier quoted context omitted.

In iOS 16 it’s tap on the workout, then anywhere under Workout details and scroll a bit. That is really no discoverability issue, because there is even a show more button next to it, that has the same function. But maybe it changed on iOS 16?

Really weird. The only things I can tap into are the splits and the route map. I can scroll the heart rate over to recovery as well. I’m on ios 15. I wonder if it’s the workout type? Outdoor Run, Open Goal is what I’ve used for years now.

Upgraded to iOS 16. This is a new feature and easily discoverable in that release.

Re: Analysis of Apple Watch running data

#167

Post by Maursault »

sirsinsalot wrote: post #164
Maursault wrote: post #149

Earlier quoted context omitted.

> Again, more wrong. Zone 2 HR training induces a different physical response to zone 4. I'm not sure what you expect to accomplish by using obscure and invented health industry terminology absent from medical science and citing this kind of evidence with a three hour long podcast that I'm simply not going to entertain. Regardless, you have constructed a new straw man argument. My point was far less complicated, whic…

The video I linked was doctors who specialise in fitness doing a literature review of the evidence of what I was discussing as published in medical journals and talking about the actual, medical, biomechanics. "by using obscure and invented health industry terminology absent from medical science" "Zone 2 HR" is just an alias for 65%-75% of your max heart rate with Zone 3 being 80%-85% and so on ... very simple, and m…

Your argument has not changed, thus remains both straw man and ad hominem fallacies.

Re: Analysis of Apple Watch running data

#168

Post by tinus_hn »

qwertox wrote: post #113
PragmaticPulp wrote: post #16

> After about a kilometer I have to cross a busy street, I need to pause there regularly. Pausing always fixes erratic mode. Given that the “erratic mode” only impacts the beginning of the run and disappears suddenly at known locations, this sounds like an issue of delayed GPS lock. And given that the problem didn’t exist in the past, it could be a software issue due to upgrades. Or it could be a hardware issue that…

Couldn't the watch request the list of satellites locked to the phone and pretend to be locked to them as well, instead of building the list by itself?

If the phone is available the watch will just ask the phone for its location and not waste its own small battery.

Re: Analysis of Apple Watch running data

#169

Post by firexcy »

Exactly my experience. I run in laps so I'm pretty sure of the distance simply by counting and multiplying, which gives a mostly constant speed of ~5min/km. Apple Watch says my speed is sometimes 3.5min and sometimes 6.5min, and calculates drastically different caloric counts from day to day, which is to the best useless and to the worst misleading and demeaning.

Re: Analysis of Apple Watch running data

#170

Post by bob_theslob646 »

zx10rse wrote: post #120
kodisha wrote: post #58

Semi related iWatch Rant - if you think running data is bad, try tracking your sleep. It just doesn't work. - Sleep for 3h - wake up for 1, sleep for 5 more: records 3h only. - (being a parent of a small baby) do not sleep at all during the night, sleep 4+3 hours during the day: 0 hours recorded - sleep trough the night but wake up every 90-100 minutes (baby again): 0 hours recorded Damn, this is a $500+ device, and…

For anyone interested in heart rate accuracy and sleep tracking accuracy I will recommend to check The Quantified Scientist reviews . From his latest reviews of the new apple watches, heart rate is pretty much on par with chest strap and sleep tracking is also far better than anything he tested. Apple Watch : Scientific Sleep Test - https://www.youtube.com/watch?v=LPqtfC70QTU

This was great. Thanks for sharing.
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