Steve - not to derail, but how much outdoor work do you do/what is your schedule through the summer? I piss and moan about living in Hilton Head, but your situation is much worse but you seem to do pretty well with however you’re breaking things down.

Brian (& anyone else who have used this product).

Do you think this device could be helpful in comparing products that have a "perceived" increase in heat / core body temperature?

Off the top of my head I'm thinking back to back outdoor tests where power is maintained between two helmets or suits (with adequate time between runs to allow core body temperature to normalize)... for example, benchmarking an aerohead vs a rudy wing or a black tri suit vs a almost see thorugh white one built to be "lighter and cooler"

What are your thoughts on this??

Cheers
Mike

has anyone successfully used this on a Forerunner 920? The device doesn't appear on the 'Connect IQ' list for the Core app, and I really want to use core with this particular watch. (and not have to upgrade to another Garmin!).

Send a request to Core but I thought one of the testers might have dealt with this.

In the video they placed several COREs at different positions (forehead, chest, arm, etc.) and talked about coming up with a normalization between them. I'm taking this to mean that you will get different readings from different placements (unlike a optical HRM that should read the same everywhere), so consistency/repeatability in placement is key to get actionable results and historical baselines are needed to know what those reading mean for your performance. Is this correct? Is there some consistent variance vs an established source of truth (ex. pill or rectal)?

Also, how do things like dumping water over yourself at aid stations (and other non-steady-state events) impact the readings?

desert dude wrote:

You're going to need to do several A/B testing sessions imo. Maybe an A/B/B/A then the next session B/A/A/B then do that two or three more sessions. With the crossover you've hopefully eliminated temp increases due to duration as well as ambient temp fluctuation. You'll need to keep the time you're down between runs the same as well. Unfortunately A/B testing is a lot harder to get right than it would seem.

One application I could definitely use this for is heat acclimation; in particular, lowering risk of heat stroke. For example, the last heat session I did raised my temp by more than 2.5 degrees C. I think you only need 1-1.5 degrees to get the benefit. If I’d had this device, I could have backed off.

What actionable items come from it? Or just the nice feeling of knowing you’re getting hot? Have you found anything like a 30sec walk break gets temp down?

Interested to hear more how you use it.

Also - chest or arm? Website makes it sound like chest is preferred but they sell an arm strap. I haven’t worn a chest strap in years.

With the clip to HRM strap option, is there anything consumable about the device? Or are the pads only consumables if you go with the stick on route?

Yeah, that’s how the Norwegian Triathlon team tested their Tokyo white uniforms. As I mentioned above, that’s how we are planning to test some gear pre Kona. (Ie headband cooling device, kit, etc).

There is a a version for the Forerunner 920 (or Fenix 3, Fenix 2 HR and several other older devices).
It is not available on the store yet but it is a special slimed down version to cope with the memory limitations on the 920.
Working on a new build that will combined the low memory version with the standard version.

If you would like a version of the CORE ConnectIQ DataField for a device that is not listed - just send us a message either here or through the CoreBodyTemp.com website[/quote

received a response and the 'side-door' fix within a few hours of requesting. So far, every experience I have with CORE has exceeded expectations.

As well, I've spent the last few days returning to being surprised at the earlier questions (doubts?) from a few in the thread about 'actionable information' from this thing. Granted, I just dropped some coin on it so there might be confirmation bias seeping in, but I haven't run out of interesting questions that I would set out for this to answer ... individually, and generally. (Personally, this is a piece of tech that I have wanted since seeing a ST post about Simon Whitfield taking one of those core heat "pills" in a heat shed as part of his prep for the Athens Olympics ... and more recently, had made a call after seeing a television segment about the Cdn Women's Rowing Team using same in their heat prep for Tokyo.)

Just top of mind:

-how do different interval durations affect core temp
-how to recovery intervals affect core temp
-how do medications that my athletes are on affect core temp, and to what extent (ie 1 in 6 Americans (and probably more in the tri population) use psychiatric medications, and many of these have possible side effects of heat intolerance)
-what are mitigation strategies for heat accumulation in long Ae sessions (ie Bobby McGee 'run 10/walk 1' to minimize core heat accumulation)
-for coaches: athlete classification of "heat impaired" vs "non heat impaired" athletes in your squad; guiding everything from race selection to season planning
-for those heat impaired in my squad, understanding standard metrics like TSS aren't quite standard if athlete B is cooking for 12 hours after the session

and so on. So much neat stuff to come from this thing.

-how do different interval durations affect core temp
>> core temperature is mostly effected by effort level and time. So sustained high effort. The 'rest' periods in intervals also contributes to cooling. For the first few intervals or time you also have a 'thermal buffer' basically your body can absorb some of the heat energy.
you have an efficiency so for example to make 300 watts of power your body uses 1000 watts of energy leaving 'roughly' 700 watts of energy that is primarily heat energy.
As your cooling system is connected to your fueling system -> blood diverted away from working muscles for cooling purposes X steals from Y.
But with training this can better be optimized.

-how to recovery intervals affect core temp
>> the longer recovery between intervals the more chance for cooling. The shorter the recovery less cooling so will see a faster rise in core temperature.
Think of the working muscles as a (maybe bad example) a gas stove - hard effort, gas is on and heating up the water, turn off the gas, water cools down. Wait longer water cools down more. And for those 300 watts - 700 watts is a good amount of heat.

-how do medications that my athletes are on affect core temp, and to what extent (ie 1 in 6 Americans (and probably more in the tri population) use psychiatric medications, and many of these have possible side effects of heat intolerance)
>> I could find out more for you (I have some people I can consult) but we may need to know more specifically what drugs you are referring too. We were involved in a study where they induced fever by injecting mistitle toe (I could have the detail wrong on the substance) - the example is to show that yes some medications definitely have an effect on core temperature but I don't have a general / direct answer to your question. Send me a private note if you wish with specifics and see if I can get you a better answer.
-what are mitigation strategies for heat accumulation in long Ae sessions (ie Bobby McGee 'run 10/walk 1' to minimize core heat accumulation)

-for coaches: athlete classification of "heat impaired" vs "non heat impaired" athletes in your squad; guiding everything from race selection to season planning
>> most can get better with dealing with the heat through heat aware training - though some will naturally be better than others (like riding up hills or riding in the wind).

-for those heat impaired in my squad, understanding standard metrics like TSS aren't quite standard if athlete B is cooking for 12 hours after the session
>> heat, how it effects, how much one tolerates, how much performance derogates with core temp is like many things very individual. Monitoring and understanding yourself (or your athletes) is the first step. Just one more piece to the puzzle.

Hope I got to most your questions. I really like this topic so any questions please let me know or feel free to message me directly also.

---

CoreBodyTemp.com
info@CoreBodyTemp.com

I bought one and it arrived today.

I guess I should have checked to see if it were compatible with my Coros Pace watch...

Now I don't know what to do with it. Silly me.

Not sure what I can disclose publicly but... I can say that COROS is aware of CORE and how to support it in their products. So the problem you have should be resolved in the near future.

If you let COROS know that you also would like their devices to support CORE - it can help in accelerating the process.

But we don't want you to have something you feel you can not use - please send me a message and we can help sort a solution for you.

So I have had mine for all of four days now…

I am curious what others have seen for peak temperatures. I did a hot Olympic triathlon today and saw 102.1°. It was not the most miserable I have felt, but it was hard.

So I have had mine for all of four days now…

I am curious what others have seen for peak temperatures. I did a hot Olympic triathlon today and saw 102.1°. It was not the most miserable I have felt, but it was hard.

So 102 for one could be easy where another could already be in the 'limit' zone.

Though 102 F is fairly common for a well trained athlete whom has been training at elevated temperatures but at 102 most would need to be adopting a slightly slower pace (power loss due to blood being used for cooling vs fueling).
But at the same time we have seen people over 106!