Just a question about tidal volume

[JDS74]

I've been tracking all sorts of breathing data coming from my machine. Does anyone have a feeling for variation in Tidal Volume.
Mine varies from a low of 540 to a high of 690 with the average hovering about 600.
So the question is, does anyone track their Tidal Volume and, if so, how much variation do you see.

Just curious -

[Pugsy]

I don't track it or look at it or anything. It varies so widely between norms it's darn near impossible to tell much by just what we see reported by the machine.

Norms vary widely because of sex, age, height, weight, where we live, etc that the numbers the cpap machine shows don't really mean much.

They might be useful if someone had some sort of neuromuscular problem or restrictive lung disease or something like that but if we were to have those sorts of problems we would have known about it already and we wouldn't be using a cpap machine to tell us about it.

For me it's a useless statistic offered by my cpap machine that I just don't bother to look at since I don't have any sort of respiratory issue that I know of or neuro issue of some sort.