heart rate (BPM calculation) need to be revised LOL
heart rate (BPM calculation) need to be revised LOL
First of all probably is not only a BikErg PM5 issue/behaviour.
99% sure the heart rate (beats per minutes) showed next to each segment is NOT the average of the segment but the LAST value recorded before switch to the next segment.
Also the workout total (supposed) average BPM value is simply the arithmetic average of the "wrong" values told before lol (beside the "erraticity", also the last segment, could last few seconds only, "weight" the same as the others)
I believe having a real average heart rate would be great (the very best if showed during workout too) for example like already existing for cadence (RPM value) and power (Watts value) that have checked too and confirm are really the average value kept during the segment
99% sure the heart rate (beats per minutes) showed next to each segment is NOT the average of the segment but the LAST value recorded before switch to the next segment.
Also the workout total (supposed) average BPM value is simply the arithmetic average of the "wrong" values told before lol (beside the "erraticity", also the last segment, could last few seconds only, "weight" the same as the others)
I believe having a real average heart rate would be great (the very best if showed during workout too) for example like already existing for cadence (RPM value) and power (Watts value) that have checked too and confirm are really the average value kept during the segment
-
- Marathon Poster
- Posts: 11160
- Joined: April 27th, 2014, 11:11 am
- Location: Liverpool, England
Re: heart rate (BPM calculation) need to be revised LOL
Totally agree. I find it annoying that it keeps spiking with about 100m to go in a split for a steady state session and then drops by 3 or 4 bpm within 30 secs.
I assume it can't be an average as I never see it as high throughout the split, but I doubt that C2 will change the monitor to show an average
I assume it can't be an average as I never see it as high throughout the split, but I doubt that C2 will change the monitor to show an average
51 HWT; 6' 4"; 1k= 3:09; 2k= 6:36; 5k= 17:19; 6k= 20:47; 10k= 35:46 30mins= 8,488m 60mins= 16,618m HM= 1:16.47; FM= 2:40:41; 50k= 3:16:09; 100k= 7:52:44; 12hrs = 153km
"You reap what you row"
Instagram: stuwenman
"You reap what you row"
Instagram: stuwenman
- Citroen
- SpamTeam
- Posts: 8072
- Joined: March 16th, 2006, 3:28 pm
- Location: A small cave in deepest darkest Basingstoke, UK
Re: heart rate (BPM calculation) need to be revised LOL
Crazy as it seems that's how the PM2/PM2+/PM3/PM4 & PM5 have always recorded splits. You'd like to think it was a rolling average, but it's not. It is the instaneous value at the point when the split ends. Same with stroke rate and pace.
Re: heart rate (BPM calculation) need to be revised LOL
do not believe that, only heart rate is not calculated; they are aware this their official reply (hope I am allowed should not be a secret

Yes, the HR value shown on the split level are the last recorded HR.
Thank you for your feedback, perhaps the next generation of performance monitor on the Concept2 machines will have the capability to record average HR and set training zones.
Take care and be well!
- Carl Watts
- Marathon Poster
- Posts: 4723
- Joined: January 8th, 2010, 4:35 pm
- Location: NEW ZEALAND
Re: heart rate (BPM calculation) need to be revised LOL
Never really had a problem with it to be honest. As your fitness improves your average HR drops significantly and its reflected in the results. The error generated in the result caused by the HR chest strap not recording properly at the beginning of a row or dropouts caused by the battery in it going flat are a bigger problem.
If you understand how the hr measurement works in the first place its never going to be that accurate to start with. Your HR is very slow in frequency terms and not stable so to extrapolate the measurement out to beats per minute is not accurate anyway so the result is a reference value not an absolute value. Fortunately this average value changes significantly with your level of fitness or else the change would just get lost in the error you think your seeing in the results.
Confused ? Dont be. Just get your fitness level right up there then take 2 or 3 weeks off and do nothing. Jump straight back into it where you left off and watch your average HR go through the roof. Time out will see you jump right into the next HR training band with at least a 10bpm average increase after doing the same workout.
If you understand how the hr measurement works in the first place its never going to be that accurate to start with. Your HR is very slow in frequency terms and not stable so to extrapolate the measurement out to beats per minute is not accurate anyway so the result is a reference value not an absolute value. Fortunately this average value changes significantly with your level of fitness or else the change would just get lost in the error you think your seeing in the results.
Confused ? Dont be. Just get your fitness level right up there then take 2 or 3 weeks off and do nothing. Jump straight back into it where you left off and watch your average HR go through the roof. Time out will see you jump right into the next HR training band with at least a 10bpm average increase after doing the same workout.
Carl Watts.
Age:58 Weight: 104kg Height:183cm
Concept 2 Monitor Service Technician & indoor rower.
http://log.concept2.com/profile/863525/log
Age:58 Weight: 104kg Height:183cm
Concept 2 Monitor Service Technician & indoor rower.
http://log.concept2.com/profile/863525/log
Re: heart rate (BPM calculation) need to be revised LOL
recently my HR chest strap (high quality Polar H10 and with full battery) start having connecting problems (drops ed/or stucked for few minutes to a lower value than real) not happening immediately but after 30-40 minutes from the beginning of the workout.Carl Watts wrote: ↑April 19th, 2020, 1:32 pm... The error generated in the result caused by the HR chest strap not recording properly at the beginning of a row or dropouts caused by the battery in it going flat are a bigger problem.
Seems started since using simil airpod with bluetooth connection to listen videos played on the notepad in front of me. To investigate the issue so far had switched into ANT+ the chest strap connection to the PM5 (instead of bluetooth) but with no results
In your experience low PM5 battery could be the issue? Mine is around 16% (but increase when cycling) and never received "low battery" indication (will I receive?) I believe no because PM5 is a receiver, the transmitter battery is more important and it's full. By the way in the waiting for change I will try to cut the PM5 from the chest strap connection by connecting it only to the smartphone ErgData app, let see
- Citroen
- SpamTeam
- Posts: 8072
- Joined: March 16th, 2006, 3:28 pm
- Location: A small cave in deepest darkest Basingstoke, UK
Re: heart rate (BPM calculation) need to be revised LOL
You're wrong.
The PM5 watches the clock, measures watts, counts strokes and reads HR (if a HRM is connected). Nothing more. All other numbers are calculated.
All numbers recorded are instantaneous at the end of a split - always have been since PM2. There is no rolling average.
Re: heart rate (BPM calculation) need to be revised LOL
some pics from my first ever BikeErg workout
Using ErgData app have the possibility to record CONTINUOS data and uploading to Strava (or similar apps) with full level of details
only HR shown is not the average (same story if consider each segment I will show in the next post)



Using ErgData app have the possibility to record CONTINUOS data and uploading to Strava (or similar apps) with full level of details
only HR shown is not the average (same story if consider each segment I will show in the next post)


Re: heart rate (BPM calculation) need to be revised LOL
this happens because "Yes, the HR value shown on the split level are the last recorded HR."
(to be precise Watts and RPM differs too but by little value 1-2 but for sure ARE NOT the last value recorded, indeed are an average)

(to be precise Watts and RPM differs too but by little value 1-2 but for sure ARE NOT the last value recorded, indeed are an average)

Re: heart rate (BPM calculation) need to be revised LOL
(6th split snapshot then I stop I promise
)
only the last recorded value of HR is taken and put beside the 6th split level while I thougtht was an average


only the last recorded value of HR is taken and put beside the 6th split level while I thougtht was an average
