Sleep study inaccurate

[ChicagoGranny]

What is the function of the two body belts?

Measures respiratory effort.

[Grouchy Bear]

So, could comparing belt movement with a previous breath and finding about the same movement, but no/very little flow through the nasal cannula could indicate either mouth breathing or an apnea? I think it gets complicated in that case, but one might be able to discern which is actually happening, with the detailed test results and graphs available to study.

[ChicagoGranny]

I think it gets complicated

It certainly seems to be over your head and a few others commenting here.

[dataq1]

What is the function of the two body belts?

Measures respiratory effort.

While commonly referred to as “respiratory effort”, in actuality it measures the changes in chest circumference. It does not measure effort. The amount of effort to expand the chest is independent of change in dimension.

But that is not really the topic of this thread.

[jimbud]

by dataq1 » Wed Jun 15, 2022 6:54 pm

Well Dulltack0, someone disagrees.

https://www.google.com/search?client=fi ... dy+measure

Sleep studies screening for obstructive sleep apnea (OSA) and other sleep-related breathing disorders generally measure both respiratory flow and respiratory movements [1]. Respiratory inductance plethysmography (RIP) belts are typically used to determine the presence of respiratory effort [1].Jan 7, 2021

JPB

[chunkyfrog]

It appears that the key here is MATH;
whereby that which can be easily measured
can be used to estimate that which cannot be measured as easily.
Smart people do it all the time--others, not so much.

[Grouchy Bear]

I think it gets complicated

It certainly seems to be over your head and a few others commenting here.

Since you imply that it is not over your head, please enlighten all who don't fully understand how the belts and breathing are related.

[dataq1]

by dataq1 » Wed Jun 15, 2022 6:54 pm

Well Dulltack0, someone disagrees.

https://www.google.com/search?client=fi ... dy+measure

Sleep studies screening for obstructive sleep apnea (OSA) and other sleep-related breathing disorders generally measure both respiratory flow and respiratory movements [1]. Respiratory inductance plethysmography (RIP) belts are typically used to determine the presence of respiratory effort [1].Jan 7, 2021

JPB

The key there is “determine the presence of” which is not the same as “measures respiratory effort”.
RIP belts are based on inductance sensors, those sensors measure changes in volume (of the chest and abdomen) , not effort.
Even the dimensions (units) that RIPs display are in milliliters.

Yes it takes effort to increase the volume of the chest, but the belts don’t measure the amount of effort required to expand the chest.

Can we get back on topic? I believe something like : Are HSATs accurate if the apparatus ignores oral breathing.

[Dog Slobber]

What is the function of the two body belts?

Measures respiratory effort.

While commonly referred to as “respiratory effort”, in actuality it measures the changes in chest circumference. It does not measure effort. The amount of effort to expand the chest is independent of change in dimension.

But that is not really the topic of this thread.

Another example of you being tedious, adding nothing of value, and then dragging the topic off-topic. You then start posting about getting back on-topic.

Posting about how RIP belts don't measure effort, but chest circumference. Is like making the claim that thermometers don't measure temperature but expansion of liquids or coils.

Here's a clue, if you want to keep topics on-topics, stop dragging them off topic.

Can we get back on topic?

But that is not really the topic of this thread.

Now, back to the topic...

Now that is really off-topic (to this thread).

End of defense….. back to the topic

...

[jimbud]

Another example of you being tedious, adding nothing of value, and then dragging the topic off-topic. You then start posting about getting back on-topic.

Exactly. Just another example of it's P/A technique of derailing threads.

Laying it's down crap, thus forcing someone to correct said crap. Then trying to get everyone to move on and accept it's crap. Attempting to chalk up another win in Dulltack0's column. Tiresome.

Ignorance can be overcome...stupidity just feeds on itself.

JPB

[dataq1]

Another example of you being tedious, adding nothing of value, and then dragging the topic off-topic. You then start posting about getting back on-topic.

Exactly. Just another example of it's P/A technique of derailing threads.

Laying it's down crap, thus forcing someone to correct said crap. Then trying to get everyone to move on and accept it's crap. Attempting to chalk up another win in Dulltack0's column. Tiresome.

Ignorance can be overcome...stupidity just feeds on itself.

JPB

and @ Dogslobber,

Are you contending that 'RIP belts measure volume, not respiratory effort' is crap? That said "crap" was intentionally injected into this discussion in an attempt to derail the topic?

Grouchy Bear introduced the "body belts" into the discussion. Granny offered a explanation as to what those belts did. Subsequently I clarified Granny's explanation. That should have been the end of that.

I don't really understand your animus towards me, but your animus/ criticism is really off topic and has nothing whatsoever to do with CPAP functions.
Do you expect me to ignore your attacks on my motives?
If you don't appreciate my comments, I invite you to either ignore them or foe list me or begin a new topic. It's all the same to me.

Now, can we get back on Sanjay's topic.......

[chunkyfrog]

Thanks to Dulltack0's obnoxious behavior, returning to the original topic is
NEXT TO IMPOSSIBLE.
Please go away--this is a group help forum, meant so we can help each other-
NOT SO SOME DUMBASS CAN FEED HIS EGO.
PATHETIC!

[Dog Slobber]

If you don't appreciate my comments, I invite you to either ignore them or foe list me or begin a new topic. It's all the same to me.

If you don't appreciate my comments, I invite you to either ignore them or foe list me or begin a new topic. It's all the same to me.

[Rubicon]

I'd like to go back to the part where OP claims there are 2 belts, cause there should only be one:

https://document.resmed.com/documents/p ... lo_eng.pdf

I don't think it's RIP technology either.

And unless a RIP belt is calibrated (cRIP) it doesn't measure volume, it measures motion.

[Rubicon]

And unless a RIP belt is calibrated (cRIP)

And even if you did calibrate it, it would only be accurate until the guy decided to roll over.

That said, uncalibrated RIP belts are far better than piezo because the signal is superior.