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Any way to determine REM sleep from Flow Rate?
#11
o1bob037

thanks for the link. I need to check my Sleepyhead results and see how the increase in rapid breathing rate helps identify REM. Further study of sleep architecture indicates typically REM begins 80-110min after stage 1 and coincides with a reduction in Tidal Volume.
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#12
It's very easy to see the REM periods. Your respiratory rate line will be pretty flat, then suddenly it swings way up and down.
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#13
By that criteria I am in REM sleep 100% of the time I use CPAP!
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#14
(08-30-2016, 10:49 PM)chill Wrote: By that criteria I am in REM sleep 100% of the time I use CPAP!

And by that criterion I am hardly dreaming at all. Even when I wake up from a dream there is generally no sign of it in the flow rate graph lately.

You can really only measure the sleep cycle accurately with electrodes stuck on your head.

When I first started therapy my flow graph was jumping around like chill's but as time went on I had flatter flow rates and fewer jumpy periods. For the last month or so my flow rate has been pretty even most of the night, and as I said I have woken up from dreams that don't show later on the flow rate graph.
Ed Seedhouse
VA7SDH

The above is my opinion.  It is just possible that I may, occasionally, be mistaken.

I am neither a Doctor, nor any other kind of medical professional.

Everything put together sooner or later falls apart.
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#15
Do you mean that your respiratory rate is never flat but is largely fluctuating 100% of the time?
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#16
Spot the REM:
[Image: pYdYuLZ.png]

[Image: YKKd0PY.png]
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#17
I might be able to spot the REM on the first image, but not on the second.

I'll post an image if it lets me.
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#18
You can see it here:

[Image: 3505778.jpg?AWSAccessKeyId=AKIAIWXD4UV3F...vPBTIYE%3D]
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#19
It doesn't seem to be showing. I'll make it an attachment.

   

You can see the fluctuation that is characteristic of REM breathing in the respiratory rate.
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