Morbius wrote: ↑Thu Feb 17, 2022 2:22 pm
AmSleepnBetta wrote: ↑Thu Feb 17, 2022 5:02 am
Thank you for that remainder, Morbius, and BTW, did PR assign you a mission here, where his embarrassing early-thread dicta (e.g., "there is no connection between flow limitations and tidal volume") are being read too widely?
Wellll, let's talk about that a little. Cause actually, in many of the examples of flow limitation you and daquill have posted, no reduction in tidal volume occurs. And indeed, that's the whole purpose of increasing duty cycle, namely preserving tidal volume.
That said, you do have one example where there is tidal volume reduction in the face of severe flow limitation, but frankly, that flow limitation is so severe I would score that as a hypopnea (at the least).
Again, thank you for confirming my opening header and main purpose and point made in notes for the 7 hour graphic. I stated it showed duty cycle defending TV against FL. And of course, my overall respiratory defense maintained TV against the effect of FL. In the 7 hour view you can see the upper envelope of blue TVd indicators reflect loss of OSCAR TV's due-to/along-with rises of RR as the post or image notes explained. The 7 hour mass of FL, no, cannot be correlated at that scale, but correlation is obvious in 52 minute and 2 minute views.
First, what a reach for PR's benefit! Aint't buying it if you say some remote FL you or he find, driven by wave shape alone, say, is going to prove his case that there is no connection between FL and TV.
The most charitable thing I can write is get your glasses checked to see TV reductions. And, no not all reductions: I am going to show only those marked accordingly, maybe a few extra. Go do equivalent legitimate work somewhere to present evidence and prove me wrong.
List of dates and times will follow when penciled notes are spreadsheeted maybe tomorrow. It will list significant (lagging) rolling average TV lows OSCAR presents and my high data rate TVd (TV drops). That done, I'll ignore further pettifogging, but will answer this rubbish one more time.
For readers and a bit for Morbius:
Five factors here:
--small rises and falls of TV at compressed vertical scales used
look insignificant;
--rolling averages of TV lag real time reductions of TV;
--local high I/E ratios, duty cycles and respiratory rates show TV being maintained against FL when the respiratory system is capable--again, thank you very much for reinforcing that main thrust of my work breathing in the 7-hour view and typing later posts showing it here, Morbius;
--a FL flag may entail only a small drop (if any) in TV if driven primarily by wave shape, duty cycle or respiratory rate . A small image up-thread shows Resmed contributors to FL flags from? NIH? (My first graphic with notes--page 1?--in this thread contrasts TV drops with FL, both descending along the same axis. Those yellow and rust drops and the red and rust drops from the axis are plots from raw Resmed data generated by the Resmed Autoset device of another person. (Read it with good glasses, Morbius. There aren't many perfect matches of Resmed FL with TV drops anywhere for reasons stated and as graphed in yellow as mentioned..)
--if one could suck hard continuously on a 1/4 inch straw at a steady rate, flow restricted/limited as that would be, there would be no drop in flow rate or tidal volume , but flow rate and volume of air would be vastly flow limited and reduced compared to doing that with a 1/2 inch straw--a kind of small airway UARS analogy.