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Old 06-15-14, 08:02 PM   #1
seanpatrick76
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Heart Rate Monitor that saves an actual ECG?

Hey all!

I'm thinking about purchasing a HRM as I become more serious about cycling. I commute every day to work, but have been doing longer rides on a regular basis (70 - 140k) the last couple of years. I recently buckled and tried clip-less pedals, and OH MY GOD what a difference. In any case today I had such a good run (100k) with my new pedals I thought the next logical step would be getting a HRM. I'd like it primarily to monitor my heart rate (duh) - however wondered if there was one that actually kept a record of the EKG /ECG readout that I could download and view. The reason for this is I had a heart procedure a few years back to fix a racing heart rate (PSVT) - and a result of that procedure is that sometimes my heart skips beats. Sometimes when I'm well in to a longer stretch I'll really feel it skip, and would like to have a way to see an interpretation of that on a readout so I could monitor it. Secondary would be trying to keep in a good zone for endurance riding, but primarily it will be to monitor my arrhythmia(s). I don't need GPS (though I wouldn't say no to it) and would like to keep the budget fairly reasonable as I'm spending ALL my money going cycling through Ireland for 3 weeks this summer. I'd love some suggestions! Thanks so much, Cheers!

Sean.
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Old 06-15-14, 09:33 PM   #2
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There isn't any such bicycle computer. EKG's are a medical test that no sport equipment company would go anywhere near.
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Old 06-15-14, 09:38 PM   #3
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There isn't any such bicycle computer. EKG's are a medical test that no sport equipment company would go anywhere near.
Well it doesn't have to be NEAR as comprehensive, I just mean the basic waveform where I could at least pinpoint at what BPM my heart skips, like if it just showed a basic line where it jumps from one peak to the next (I don't know if I'm doing a very good job of describing it sorry) where I could cross reference what speed my heart was going at the time. There's nothing like that? Just a basic average BPM, max and min etc over a certain amount of time? I'd thought they'd have come a lot farther by this point.
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Old 06-16-14, 07:44 AM   #4
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Well it doesn't have to be NEAR as comprehensive, I just mean the basic waveform where I could at least pinpoint at what BPM my heart skips, like if it just showed a basic line where it jumps from one peak to the next (I don't know if I'm doing a very good job of describing it sorry) where I could cross reference what speed my heart was going at the time. There's nothing like that? Just a basic average BPM, max and min etc over a certain amount of time? I'd thought they'd have come a lot farther by this point.
It might be possible but not practical.

What sort of typical user would be able to interpret the meaning of a "wave form"?

With all the bouncing around, it would be hard to guarantee a good connection.

For the liability risk and FDA approval that would likely seem to be required and the small market, sport equipment manufactures would have to charge a lot (comparatively). It's also a business that they don't have any experience in (competing against a raft of companies who do).

Googling "personal ECG" gives an idea of what is available and indicates (to me) that it is unlikely you will ever see that feature in a cycling computer.
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Old 06-16-14, 08:24 AM   #5
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It might be possible but not practical.

What sort of typical user would be able to interpret the meaning of a "wave form"?

With all the bouncing around, it would be hard to guarantee a good connection.

For the liability risk and FDA approval that would likely seem to be required and the small market, sport equipment manufactures would have to charge a lot (comparatively). It's also a business that they don't have any experience in (competing against a raft of companies who do).

Googling "personal ECG" gives an idea of what is available and indicates (to me) that it is unlikely you will ever see that feature in a cycling computer.
Fair enough. I guess I was looking for something like this, but geared towards cycling: AliveCor

maybe in a few years time something like that will be available, in the mean time, I'll just go with a basic heart rate monitor
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Old 06-16-14, 08:33 AM   #6
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Fair enough. I guess I was looking for something like this, but geared towards cycling: AliveCor

maybe in a few years time something like that will be available, in the mean time, I'll just go with a basic heart rate monitor
That is $200 without the phone. And, I doubt it would work reliably while moving around.
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Old 06-16-14, 04:53 PM   #7
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That is $200 without the phone. And, I doubt it would work reliably while moving around.
The AliveCor thingy works well, but you need to have both hands on the sensor, so it is not practical for continuous readings --- you have to stop and take a reading. But, it does work pretty well for its intended purpose.....
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Old 06-17-14, 08:02 AM   #8
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You could try a Polar HRM and their ProTrainer 5 software to capture and display HRM data. It even does one-second R-R intervals. I've got an older CS600, but there are newer models. They are expensive. Here's a graph found with Google and persons name redacted:

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Old 06-17-14, 09:15 AM   #9
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An EKG is a LOT of data compared to saving heart rate. The data rate is 100x higher. The app for the AliveCor is only recording it for a few seconds, not even a minute, much less the length of a ride. An EKG is the difference between the voltage of pairs of electrodes they slap on you. The website for the AliveCor says it gives Lead I, which is left arm minus right arm. The complete EKG Holter monitor or event monitor with all the electrodes gets you a complete look at all the signals to the heart over the entire four-chamber cycle for a significant time, but that seems like too much for a phone app. I don't know why it costs $200 for AliveCor, it looks like two pieces of sheet metal glued on a phone case and the app is doing all the work.
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Old 06-24-14, 12:05 AM   #10
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Originally Posted by stevnim View Post
You could try a Polar HRM and their ProTrainer 5 software to capture and display HRM data. It even does one-second R-R intervals. I've got an older CS600, but there are newer models. They are expensive. Here's a graph found with Google and persons name redacted:

Hmm.. Well that looks good but it's just graphing the intensity of your workout, that's not exactly what I mean. I meant something more like this:
though it's obvious the technology isn't there right now. Thanks for looking for me anyways!


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An EKG is a LOT of data compared to saving heart rate. The data rate is 100x higher. The app for the AliveCor is only recording it for a few seconds, not even a minute, much less the length of a ride. An EKG is the difference between the voltage of pairs of electrodes they slap on you. The website for the AliveCor says it gives Lead I, which is left arm minus right arm. The complete EKG Holter monitor or event monitor with all the electrodes gets you a complete look at all the signals to the heart over the entire four-chamber cycle for a significant time, but that seems like too much for a phone app. I don't know why it costs $200 for AliveCor, it looks like two pieces of sheet metal glued on a phone case and the app is doing all the work.
Yeah it looks like I'm out of luck at the moment. Perhaps in 5 years or so the technology will be there, it wouldn't surprise me at the rate these things are going. In any case I ended up buying a Polar FT7 HRM that was on sale on Amazon (Canada) for 89.00: Polar FT7 Heart Rate Monitor (Black / Silver): Amazon.ca: Sports & Outdoors and purchased the handlebar attachment from Chainreactioncycles: Polar Bike Mount Set | Chain Reaction Cycles so I could have a little dashboard on the bike. At the very least it will give me a more accurate count of the calories I'm burning, and more importantly should give me a better idea what zone I'm in. I'll also be able to monitor if I'm pushing my HR too high without realizing it and back off on the pace a bit. It CAN be downloaded to the Polar site, but you need an extra attachment worth about 60 bucks which is a bit of a gyp, so I'll work with what I've got for now. I'm certainly curious to try it out
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