How to Measure Your Rectal Temperature

Speaker 2
Yeah, that's a lot of that's a lot of clothes. I've actually, I found a photo on Google on what it looks like. And there's they are very well dressed for for an indoor training session. So you have the you describe the heat suit and I guess you're using you're not using any any fans when when doing these sessions. And but the temperature in the room is, is it a normal room temperature or do you try to heat it up.
Speaker 1
Yeah, the way we did it was it was just the normal temperature of the room, which was yeah 1718 degrees and there is a big difference. If the room temperature increases by only two three degrees, you will notice that a lot so then you either need to to reduce the clothes or reduce the power of it.
Speaker 2
Yeah, so what is the what are the instructions in terms of how to execute it are they executed based on power or based on our heart rate or even core temperature.
Speaker 1
Yeah, combination, I would say the main and the main measurement that we care about is the the the rectal temperature that we want to to be at 38.5 degrees. So, so, so that's the main the main measurement so so if I'm and we are just measuring that immediately after the session. So for the first time it's a bit trial and error. So, and usually people are going too high in their first session ending up around 39 and that's not a very good experience. So, so then they need to either reduce the power output or the amount of clothes. Yeah, so, and also we want a big dehydration during that session. We think that's important but we don't know. So, so they are advised to drink like half a liter of water during the session and then they will typically lose from or the body weight will be like from one to two kilo lighter after the session. So, so they are a bit dehydrated but of course this depends on the body size of the person. And so, and then it's very important to to reiterate well after after the session.

Bent Rønnestad, PhD | EP#386

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