Heat acclimation

In the Connect Mobile app you go to Performance Stats>Training Status and it will show at the bottom of that screen. It's also available in the Training Status widget on the watch.

I don't think it's giving you any real information other than that your acclimation to heat is improving or decreasing. But it also means that your Vo2Max score won't take a hit during your first week or two of running in warm/hot weather.

thanks R_Tellis. really curious to understnad how Garmin retrieve weather data and also the source of that... How to know, in your opinion? thanks

As long as you keep doing outdoor activities where the temperature is above 71f/22c, as far as your watch is concerned, it will go up.

I can't remember where I read it, DC Rainmaker maybe, but it will go down after 3 days without activities that meet the criteria. I've seen this in action as I didn't run for several days after the half marathon I mentioned in the original post and my acclimation dropped form ~21% to something in the teens.

After a couple of really hot runs this week I'm back up to 48%

Seems like a huge limitation for my applications. Most training runs are shorter, but I've had a leg of a relay race start at 70deg and end at 105deg within an hour and a half. I'm also thinking about how this would not work for any of my triathlons. I obviously cannot have my phone connected during a swim, and I'm not going to grab my phone in transition and carry it with me on the bike or run either. If I'm doing a half-iron distance, i'm starting at 6:30-8am and ending around noon-2pm... there is always a huge temperature swing during that time. If i'm doing a full distance, I'm starting at 6am and ending at 6pm which is going to have a huge range of temperatures obviously. I'm confused as to why the temperature data can't be pulled at the end of the activity and overlayed with the activity. The historical temperature data exists and obviously there is a track of where you were throughout the activity at any given time.

I realized heat acclimation estimation could be misrepresented if running for very short activity. E.g.: today I ran for 40 minutes and heat acclimation was stable; but I usually add after a separate 1 km run activity for strides... And in this case heat acclimation always increase! In my opinion heat acclimation should run for activity with a time > 10 minutes.. could it be something to suggest to garmin team? HermanB?

I will occasionally see this "pop up" on my watch as a metric, but I have not been able to find this anywhere else on Garmin Connect (web or mobile).  Someone above said it is under "performance stats" but the last thing I show there is Pulse Ox Acclimation.  I don't really understand why this wouldn't show in the web version of Garmin Connect either.

In the app, you will find it under performance statistics and in German its called "Trainingszustand".

Its in the last row

Same thing goes for your body weight. For long runs we loose a lot of weight in sweat (especially in hot weather) and the best thing to do would be for the Garmin Index scale to allow us to weigh ourselves right before and right after the run.  Then we would catch two birds with one stone, 1) we would know the liquid loss and 2) have a better estimate of the VO2max as it depends on the body weight.  A simple linear interpolation between the start and end values of body weight would work great.

But as far as I know, the Index scale doesn't even allow multiple measurements per day at all the way the Withings scales do.

Degree acclimated to the current environmental conditions. 100% = fully acclimated.