ButterflyCatastrophe t1_ix33o7h wrote on November 20, 2022 at 11:09 AM

Reply to comment by Partucero69 in Cold exposure induces dynamic changes in circulating triacylglycerol species, which is dependent on intracellular lipolysis: A randomized cross-over trial (Nov 2022) by basmwklz

This study was designed to maximize non-shivering thermogenesis, and any muscular activity is going to be a source of heat that reduces the drive for non-shivering thermogenesis. i.e.: you need to feel uncomfortably cold.

They couldn't/didn't bother to tell us what temperature they used, but their subjects were all lying in chilled water baths, adjusted to just above uncontrollable shivering. That probably means a core body temperature around 35 oC.

Bikrdude t1_ix3mh0l wrote on November 20, 2022 at 2:31 PM

If they didn't provide the temperature the work is not high quality

ButterflyCatastrophe t1_ix43151 wrote on November 20, 2022 at 4:33 PM

Eh. They chilled everyone until they started shivering, then warmed them until they stopped. Temps are going to depend on individual body shape, fat distribution, and who knows what else. I can see an argument where the average wouldn't be particularly informative, and might be easily misinterpreted as a special bathing temperature that triggers TG release. It'd be nice to know; it'd be nice to have core temperature records; but there's always improvements to offer after the fact.

"Not high quality" is undeserved.

FailOsprey t1_ix46lzy wrote on November 20, 2022 at 4:58 PM

What your saying makes sense. From an ethical standpoint, shivering seems like a safe gauge of when to heat up the water. It takes away the ability to control the water temperature, which is bad, but it reduces the likelihood of lawsuits and harm.