Armband and ZoneSense
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Do you think ZoneSense would work with this armband (which measures HRV)?
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@ADidier According to what I have learned here: no. Your watch needs R-R data which optical sensors do not provide.
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@Gunnar said in Armband and ZoneSense:
@ADidier According to what I have learned here: no. Your watch needs R-R data which optical sensors do not provide.
Exactly
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I’ve read own Reddit that ZoneSense works with this optical heart rate monitor (Rhythm+2.0).
A comparison of the data between a chest strap and this optical sensor would be necessary.https://www.scosche.com/scosche-rhythm-plus-2-0-heart-rate-monitor-armband
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@Gunnar, according to to Texas Instruments Technical Article from May 2018 OHRs can and do measure R-R intervals. They state:
“Here’s further detail on some of the measurements possible with optical heart rate sensors:
…
R-R interval (heart-rate variability) – The R-R interval is the time between blood pulses; generally, the more varied the time between beats, the better. R-R interval analysis can be used as an indicator of stress levels and various cardiac issues.” (page 2)I would presume that also Suunto’s OHR measure R-R intervals as they calculate night time HRV.
That being said AFAIK the R-R measurements from OHR are not good (precise) enough for ZoneSense calculations which are thus limited to ECG (chest) straps. So even if Coospo OHR, or another OHR, does broadcast R-R interval data it would probably result in wrong/not accurate ZoneSense data.
https://pmc.ncbi.nlm.nih.gov/articles/PMC8927864/
Note that the HRV marketing of the Coospo might refer only to night time HRV calcualtion (as is the case with Polar Verity Sense).
