Core temp while exercising/racing

I know someone that had to go to the hospital today because they were racing and had a core temp of 105 when they checked them out. So, obviously something is wrong when the average temp is 98.6. This got me wondering and is there any research on how hot your core temp gets during a workout? Any indication of the conditions of the workout, too? I know that it is obvious that your core gets hotter when you workout in the heat, but I’m wanting exact numbers.

It won’t get much higher than 39 C!

http://www.sportsscientists.com/2008/05/fatigue-series-exercise-in-heat.html

Core temp rises during warmup; it goes up a couple of degrees (I don’t think it’s more than 2) and then sweating helps you cool off and keep that correct temp.

Can’t give you exact figures but there’s a ballpark.

This wouldn’t have been the CapTexTri in Austin would it? The blacktop was hotter than hell yesterday…

-Jeff

Yes, it was CapTexTri.

I wonder when the HRM/Watch/GPS makers will start incorporating body temp (maybe some already do, but not that I am aware of).
I read some of the stuff that Lance is doing with core temp and it seems like there is a good reason to watch your temp.

How are you going to measure core temp though? Having a sensor on the wrist or chest strap isn’t reliable because it measure surface temp, not core temp. Currently, the only ways to measure temp (that I know of) now are traditional thermometer on your mouth or up your butt, swallow an RFID transmitter that measures your core temp (each “pill” is about $100), or an IR thermometer in the mouth. I think it is a good thing to have, but how are we going to accurately measure it?

We have a thermometer at home that uses your ear for temperature.
Better than the butt or the mouth, but probably still not totally comfortable.
Could attach something to your helmet that goes in your ear.

On a side note, here is a little thermometer humor for you.

Q. - How can you tell the difference between an oral thermometer and a rectal thermometer?
A. - Easy, the TASTE!!!

Ba dump bump…

The ear one is most likely an IR thermometer and that is definitely better than a skin IR reading.