Pulse Rate - Lowers

[GlennUk]

On the website, the HR measurement method is ECG. There's probably a standard of accuracy and precision in the methodology of ECG.

You could be right, however its not stated which makes me curious.

Do you know of any HRM-s which are certified to a certain degree of accuracy and precision as claimed on the respective website?

No, I havent seen any of the popular brands marketed with such info.

[Nomath]

Do you know of any HRM-s which are certified to a certain degree of accuracy and precision as claimed on the respective website?

No, but I have read several studies in which a Polar chest sensor has been compared and validated against ECG, e.g. in
https://www.researchgate.net/publicatio ... tal_Stress

These studies show that the two readings are very close. They differ however in one aspect. EGC data show that the HR varies continuously, from beat to beat, even for a person in rest. This is called Heart Rate Variability (HRR) and it is an important diagnostic for a person's health. Most commercial HRM's do not display this beat-to-beat variation, probably because it would be a nuissance to read fluctuating numbers on a digital display. They apply some time-averaging.
Several chest-belt Polar sensors have a separate mode to measure HRV, so they are well able to measure beat-to-beat variations. Wrist sensors are less sensitive to HRV, even with arms at rest.

[GlennUk]

Do you know of any HRM-s which are certified to a certain degree of accuracy and precision as claimed on the respective website?

No, but I have read several studies in which a Polar chest sensor has been compared and validated against ECG, e.g. in
https://www.researchgate.net/publicatio ... tal_Stress

These studies show that the two readings are very close. They differ however in one aspect. EGC data show that the HR varies continuously, from beat to beat, even for a person in rest. This is called Heart Rate Variability (HRR) and it is an important diagnostic for a person's health. Most commercial HRM's do not display this beat-to-beat variation, probably because it would be a nuissance to read fluctuating numbers on a digital display. They apply some time-averaging.
Several chest-belt Polar sensors have a separate mode to measure HRV, so they are well able to measure beat-to-beat variations. Wrist sensors are less sensitive to HRV, even with arms at rest.

Thats interesting I haven't seen that. Suggests that the Polar HRM is accurate and probably precise if its been measured against a 'scientific' device

[Tsnor]

Do you know of any HRM-s which are certified to a certain degree of accuracy and precision as claimed on the respective website?

No, but I have read several studies in which a Polar chest sensor has been compared and validated against ECG, e.g. in
https://www.researchgate.net/publicatio ... tal_Stress

These studies show that the two readings are very close. They differ however in one aspect. EGC data show that the HR varies continuously, from beat to beat, even for a person in rest. This is called Heart Rate Variability (HRR) and it is an important diagnostic for a person's health. Most commercial HRM's do not display this beat-to-beat variation, probably because it would be a nuissance to read fluctuating numbers on a digital display. They apply some time-averaging.
Several chest-belt Polar sensors have a separate mode to measure HRV, so they are well able to measure beat-to-beat variations. Wrist sensors are less sensitive to HRV, even with arms at rest.

Apps like EliteHRV use HRMs to get HRV input data. They have lists of the HRMs that are viable and those that are known to not deliver the necessary data. " To accurately measure Heart Rate Variability, your heart rate monitor of choice must:

• Capture and transmit accurate R-R Intervals (also called Inter-beat Intervals or IBIs)
• Transmit the unaltered R-R intervals" https://elitehrv.com/heart-variability- ... e-monitors

Based on what I could see Polar h10 belt is considered the best. https://www.mdpi.com/2254-9625/10/1/29/pdf

ASIDE: re "..Wrist sensors are less sensitive to HRV, even with arms at rest.." agree. AFAIK Fitbit has always used HRV data to spot sleep stages. They report HRV for some of their optical devices using RMSSD to get HRV from the heart rate data, but only for days with 3 hours of uninterrupted sleep so they can aggregate data from a mostly resting interval. Polar H10 is accurate after 2-3 mins.

[jjtg]

I had the same issue with Garmin FR235. Therefore, I had used Garmin HRM2 for several years. It seems that Garmin has improve the technology to track heart rate using wrist heart rate monitor. Both Garmin Vivoactive 4 and Venu 2 have indoor rowing activity. I tested them against the Garmin HRM2. The differences of readings were within 2bpm. The accuracy is good enough for me. Now when I do HR rowing, I enable broadcasting HR in Venu 2 and connect Venu2's wrist HRM to PM5. It has been a couple of weeks. No strange data so far.