From Newsgroup: comp.mobile.android

On 2026-04-13 03:04, VanguardLH wrote:

4.4. Calibrate OptiBP with a Cuff
Once the personal profile is set up, calibrate the app according to
the user’s personal physiological parameters by taking two sample
measurements with a cuff-based upper-arm blood pressure monitor.

Yep, so you'll need a BPM. If you have a BPM, why bother with this app?

Not having to undress.
--
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;
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From Newsgroup: comp.mobile.android

"Carlos E.R." <robin_listas@es.invalid> wrote:

On 2026-04-13 03:04, VanguardLH wrote:

4.4. Calibrate OptiBP with a Cuff
Once the personal profile is set up, calibrate the app according to
the user’s personal physiological parameters by taking two sample
measurements with a cuff-based upper-arm blood pressure monitor.

Yep, so you'll need a BPM. If you have a BPM, why bother with this app?

Not having to undress.

Doesn't address having to undress once a month to calibrate the phone
app using a real BPM. I take measurements once per week (not everyday
since my situation is not critical). That means I undress once per
month and not the other 3 times. Since the patient is susposed to check
at the same time every day after relaxing, the easiest time to measure
is when I get up, and I'm already undressed.

If your shirt sleeves are so tight that you cannot roll them up to use
the cuff on your bared upper arm, the cuff can be used over the sleeve.

https://pmc.ncbi.nlm.nih.gov/articles/PMC5368310/
"There were no statistically significant differences between
measurements taken over the sleeve and below a rolled-up sleeve"

Also, unless you are wearing a winter coat, you can measure over a shirt sleeve. No undressing needed. Don't know many folks wandering out to a
bench in their backyard during the cold winter to measure their BP. How
many sleeves cover your arm? For most people, it's just 1 sleeve.

Using the cuff over a sleeve is a lot more accurate than using the photoplethysmogram method watching blood vessels extend during a pulse.
PPG is to indicate change, like when applying anethesia before an
operation, not to provide accurate measurement.

How many of the available Android apps that claim to measure blood
pressure by using the phone's camera (with illumination through the
finger they often omit mentioning) claim certification by any medical organization? Just trying to find one that employs PPG is tough (I
found one with is not free but trialware) rather than a bunch of history
apps that you enter the data or use Bluetooth-enabled BPM to transfer
the data from the BPM to the phone app. The OP wasn't interested in a
tracker app, but a direct replacement for a traditional BPM.
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From Newsgroup: comp.mobile.android

On 2026-04-14 08:52, VanguardLH wrote:

"Carlos E.R." <robin_listas@es.invalid> wrote:

On 2026-04-13 03:04, VanguardLH wrote:

4.4. Calibrate OptiBP with a Cuff
Once the personal profile is set up, calibrate the app according to >>> the user’s personal physiological parameters by taking two sample >>> measurements with a cuff-based upper-arm blood pressure monitor.

Yep, so you'll need a BPM. If you have a BPM, why bother with this app?

Not having to undress.

Doesn't address having to undress once a month to calibrate the phone
app using a real BPM. I take measurements once per week (not everyday
since my situation is not critical). That means I undress once per
month and not the other 3 times. Since the patient is susposed to check
at the same time every day after relaxing, the easiest time to measure
is when I get up, and I'm already undressed.

If your shirt sleeves are so tight that you cannot roll them up to use
the cuff on your bared upper arm, the cuff can be used over the sleeve.

My nurse does that. I tried, yesterday, and got a very high reading.

https://pmc.ncbi.nlm.nih.gov/articles/PMC5368310/
"There were no statistically significant differences between
measurements taken over the sleeve and below a rolled-up sleeve"

Also, unless you are wearing a winter coat, you can measure over a shirt sleeve. No undressing needed. Don't know many folks wandering out to a bench in their backyard during the cold winter to measure their BP. How
many sleeves cover your arm? For most people, it's just 1 sleeve.

3.

Using the cuff over a sleeve is a lot more accurate than using the photoplethysmogram method watching blood vessels extend during a pulse.
PPG is to indicate change, like when applying anethesia before an
operation, not to provide accurate measurement.

How many of the available Android apps that claim to measure blood
pressure by using the phone's camera (with illumination through the
finger they often omit mentioning) claim certification by any medical organization? Just trying to find one that employs PPG is tough (I
found one with is not free but trialware) rather than a bunch of history
apps that you enter the data or use Bluetooth-enabled BPM to transfer
the data from the BPM to the phone app. The OP wasn't interested in a tracker app, but a direct replacement for a traditional BPM.

--
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;
--- Synchronet 3.21f-Linux NewsLink 1.2

From Newsgroup: comp.mobile.android

Carlos E.R. wrote:

VanguardLH wrote:

the cuff can be used over the sleeve.

My nurse does that. I tried, yesterday, and got a very high reading.

I've seen Doctors recommend against it, and several other things that
will get you a bad one-off reading ...

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