What to do with an EKG?
#1
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Baltimore, MD
Posts: 1,214
Bikes: 2010 GT Tachyon 3.0
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
What to do with an EKG?
I've got a $10 hockey puck thing that snoops 5.3kHz analog, polar, and coded signals off heart rate monitor bands and uploads the running spot rates to software that generates full EKG graphs from the running data. Really it's just a glorified tape recorder, there's no voodoo magic in here.
Now what do I do with it?
Now what do I do with it?
#2
Senior Member
Join Date: Feb 2012
Location: PDX!
Posts: 281
Bikes: Custom Single, factory fixed, Cannondale RT2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I've got a $10 hockey puck thing that snoops 5.3kHz analog, polar, and coded signals off heart rate monitor bands and uploads the running spot rates to software that generates full EKG graphs from the running data. Really it's just a glorified tape recorder, there's no voodoo magic in here.
Now what do I do with it?
Now what do I do with it?
That being said, if you don't have a live output, I guess you could use the data as a review of performance? To compare perceived effort with actual effort?
#3
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Baltimore, MD
Posts: 1,214
Bikes: 2010 GT Tachyon 3.0
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Forgive me my moment of pedantry and I'm not the doc (that would be my wife) but I can't imagine how it's going to output true EKG data. HRM chest straps only monitor the beat of the heat, not it's "function" per-se.
That being said, if you don't have a live output, I guess you could use the data as a review of performance? To compare perceived effort with actual effort?
That being said, if you don't have a live output, I guess you could use the data as a review of performance? To compare perceived effort with actual effort?
HRMs seem popular here anyway, this is just a glorified HRM that generates historical data. Oh well, I guess it'll provide interesting charts anyway. It's too bad I can't also graph blood oxygen concentration (there are tools to measure this too) and heat output.
#4
just another gosling
Join Date: Feb 2007
Location: Everett, WA
Posts: 19,559
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Mentioned: 115 Post(s)
Tagged: 0 Thread(s)
Quoted: 3901 Post(s)
Liked 1,953 Times
in
1,393 Posts
Here ya go:
https://www.the-ekg-site.com/about.htm
For what you want, Polar and Garmin and maybe others make a receiver that will download HR information to your computer, where their proprietary software analyses that and other information such as time, speed, elevation, elevation gain, cadence, etc. Much of this also displays in real time. That's the most important training tool I own. I'd have that before I bought a lighter or nicer bike.
https://www.the-ekg-site.com/about.htm
For what you want, Polar and Garmin and maybe others make a receiver that will download HR information to your computer, where their proprietary software analyses that and other information such as time, speed, elevation, elevation gain, cadence, etc. Much of this also displays in real time. That's the most important training tool I own. I'd have that before I bought a lighter or nicer bike.
#5
Senior Member
Join Date: Jul 2006
Location: San Jose (Willow Glen) Ca
Posts: 9,865
Bikes: Kirk Custom JK Special, '84 Team Miyata,(dura ace old school) 80?? SR Semi-Pro 600 Arabesque
Mentioned: 107 Post(s)
Tagged: 0 Thread(s)
Quoted: 2345 Post(s)
Liked 2,853 Times
in
1,553 Posts
ECG does not equal HR rate
from mayo clinic https://www.mayoclinic.com/health/ele...iogram/MY00086
"An electrocardiogram is used to monitor your heart. Each beat of your heart is triggered by an electrical impulse generated from special cells in the upper right chamber of your heart. An electrocardiogram — also called an ECG or EKG — records these electrical signals as they travel through your heart. Your doctor can use an electrocardiogram to look for patterns among these heartbeats and rhythms to diagnose various heart conditions. "
to get these signals you need to have multiple sensors place in different locations on the chest.
from mayo clinic https://www.mayoclinic.com/health/ele...iogram/MY00086
"An electrocardiogram is used to monitor your heart. Each beat of your heart is triggered by an electrical impulse generated from special cells in the upper right chamber of your heart. An electrocardiogram — also called an ECG or EKG — records these electrical signals as they travel through your heart. Your doctor can use an electrocardiogram to look for patterns among these heartbeats and rhythms to diagnose various heart conditions. "
to get these signals you need to have multiple sensors place in different locations on the chest.
__________________
Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
#6
Senior Member
Join Date: Feb 2012
Location: PDX!
Posts: 281
Bikes: Custom Single, factory fixed, Cannondale RT2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I guess, I don't know. Most of the literature says EKG, which I thought was a measure of heart rate against time--in a medical situation my understanding is they make you run on a treadmill and measure stress (via grade) against heart rate against time, and then send that graph out to an analyst that makes sense of the chart. Maybe someone is overstating their product.
HRMs seem popular here anyway, this is just a glorified HRM that generates historical data. Oh well, I guess it'll provide interesting charts anyway. It's too bad I can't also graph blood oxygen concentration (there are tools to measure this too) and heat output.
HRMs seem popular here anyway, this is just a glorified HRM that generates historical data. Oh well, I guess it'll provide interesting charts anyway. It's too bad I can't also graph blood oxygen concentration (there are tools to measure this too) and heat output.
HRM's are popular here as a live/real-time training tool, I use one daily in fact.
Finally, I too wish my HRM would also work as a pulse-ox, and if I had my way, I'd tack on a glucose monitor.
Last edited by CaptainHaddock; 04-10-12 at 02:21 PM. Reason: more info...
#7
Senior Member
Join Date: Feb 2012
Location: PDX!
Posts: 281
Bikes: Custom Single, factory fixed, Cannondale RT2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
The thing that always amazes me, is how people think that that lighter / newer bike toys are somehow going to solve their problems, that they'll move from a cat 4, to a cat 2 by buying a carbon bike or some **** like that. I mean, sure a fool and his money are soon to part and all that, but it still drives me crazy!
#8
Senior Member
Join Date: Oct 2011
Location: Phx, AZ
Posts: 2,120
Bikes: Trek Mtn Bike
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 282 Post(s)
Liked 2,654 Times
in
959 Posts
Well, just 'cuz I'm curious, how DO you analyze the data from an HRM? Max HR? Total number of beats = KW?
My current HRM is my thumb and a watch.
My current HRM is my thumb and a watch.
#9
just another gosling
Join Date: Feb 2007
Location: Everett, WA
Posts: 19,559
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Mentioned: 115 Post(s)
Tagged: 0 Thread(s)
Quoted: 3901 Post(s)
Liked 1,953 Times
in
1,393 Posts
It's mostly time-in-zone, and average HR as far as HR is concerned. Software can multiply minutes spent in each zone by some number and add all that up to quantify training stimulus, called a TRIMP. Since elevation data is also downloaded, one can measure gradient, feet per hour climbing, examine HR response to gradient, etc.
#10
Senior Member
Join Date: Feb 2012
Location: PDX!
Posts: 281
Bikes: Custom Single, factory fixed, Cannondale RT2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I do not monitor my KW, while it is possible to get that info, I just don't think it is valid enough when measured from heart-rate. I use it to monitor my "hr zones", and combine that info with my perceived effort to guide my workouts, especially when riding into strong-continuous headwinds or climbing.
#11
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Baltimore, MD
Posts: 1,214
Bikes: 2010 GT Tachyon 3.0
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Well the watch reports 170-176bpm when I'm cruising at 15-16mph. Pushing 20 or pushing up hills, my heart might reach 180; but it seems to climb REALLY FAST until it breaks 165-170 and then slow down, hitting asymptotic inflection at 174. It rarely passes 174, and it's really hard to nudge it even 1bpm higher even under heavy load.
Don't know how to interpret that. Unless I'm maxing it out, my heart rate slides up and down rapidly. Start pedaling easier? I lose 15bpm in 2 seconds, I'll crash down 30bpm in under 10, and when I come to a stop at a light I drop right to around 115-125bpm in under 10 seconds. It looks like my lower bound hovers around 110... I'll float above that until I've rested for a minute, then it just slowly starts counting back... it doesn't immediately drop lower.
So it looks like once my body's operating, it idles around 110-115, redlines around 170-175, and just revs in between basically on demand with no stability. My normal resting is around 70-75 before I go do any work, by the way.
Odd.
Don't know how to interpret that. Unless I'm maxing it out, my heart rate slides up and down rapidly. Start pedaling easier? I lose 15bpm in 2 seconds, I'll crash down 30bpm in under 10, and when I come to a stop at a light I drop right to around 115-125bpm in under 10 seconds. It looks like my lower bound hovers around 110... I'll float above that until I've rested for a minute, then it just slowly starts counting back... it doesn't immediately drop lower.
So it looks like once my body's operating, it idles around 110-115, redlines around 170-175, and just revs in between basically on demand with no stability. My normal resting is around 70-75 before I go do any work, by the way.
Odd.
#12
In Real Life
Join Date: Jan 2003
Location: Down under down under
Posts: 52,152
Bikes: Lots
Mentioned: 141 Post(s)
Tagged: 0 Thread(s)
Quoted: 3203 Post(s)
Liked 596 Times
in
329 Posts
Sounds to me like you're out of shape.
You need to get out there and ride more than the 6 miles you've done so far this year.
You need to get out there and ride more than the 6 miles you've done so far this year.
__________________
Rowan
My fave photo threads on BF
Century A Month Facebook Group
Machka's Website
Photo Gallery
Rowan
My fave photo threads on BF
Century A Month Facebook Group
Machka's Website
Photo Gallery
#13
just another gosling
Join Date: Feb 2007
Location: Everett, WA
Posts: 19,559
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Mentioned: 115 Post(s)
Tagged: 0 Thread(s)
Quoted: 3901 Post(s)
Liked 1,953 Times
in
1,393 Posts
Well the watch reports 170-176bpm when I'm cruising at 15-16mph. Pushing 20 or pushing up hills, my heart might reach 180; but it seems to climb REALLY FAST until it breaks 165-170 and then slow down, hitting asymptotic inflection at 174. It rarely passes 174, and it's really hard to nudge it even 1bpm higher even under heavy load.
Don't know how to interpret that. Unless I'm maxing it out, my heart rate slides up and down rapidly. Start pedaling easier? I lose 15bpm in 2 seconds, I'll crash down 30bpm in under 10, and when I come to a stop at a light I drop right to around 115-125bpm in under 10 seconds. It looks like my lower bound hovers around 110... I'll float above that until I've rested for a minute, then it just slowly starts counting back... it doesn't immediately drop lower.
So it looks like once my body's operating, it idles around 110-115, redlines around 170-175, and just revs in between basically on demand with no stability. My normal resting is around 70-75 before I go do any work, by the way.
Odd.
Don't know how to interpret that. Unless I'm maxing it out, my heart rate slides up and down rapidly. Start pedaling easier? I lose 15bpm in 2 seconds, I'll crash down 30bpm in under 10, and when I come to a stop at a light I drop right to around 115-125bpm in under 10 seconds. It looks like my lower bound hovers around 110... I'll float above that until I've rested for a minute, then it just slowly starts counting back... it doesn't immediately drop lower.
So it looks like once my body's operating, it idles around 110-115, redlines around 170-175, and just revs in between basically on demand with no stability. My normal resting is around 70-75 before I go do any work, by the way.
Odd.
#14
Senior Member
Thread Starter
Join Date: Apr 2011
Location: Baltimore, MD
Posts: 1,214
Bikes: 2010 GT Tachyon 3.0
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I finally bothered to set it up. This is a ride out, sit in Barnes & Noble Starbucks eating pizza stuffed pretzels and drinking a caramel macciato double espresso shot while studying Hiragana (I just had the Katakana and Kanji books' bindings broke and rebound with spiral at Fedex Kinko's), then ride back. The ride back is an uphill climb, and you can see it. The final spike is actually a gentler upgrade, but I was pedaling extremely hard trying to ride at speed with traffic on a major road.
The sudden heart rate drop is where I sat down and started drinking the coffee (and stuffing greasy food in my face). That whole valley is me studying pretty much.
This is ... interesting. Maybe not useful (unless I want to do a sleep study on myself, which would be a nightmare--the only thing worse than a self-diagnosis is a self-diagnosed sleep study), but interesting. Apparently 220 - $AGE is your theoretical maximum heart rate, mine being 194. Given Zone 5 at 90% being that place you don't want to be, I should redline at 175--I generally can't get past 174, but I do push close to 220 (my peak is 217!) when I want to. And of course under any physical stress I rev right to 155-172, which is my anaerobic zone--in theory.
Basically I'm a ricer.
You know, it samples whenever you tell it (mine's set to every 2.0 seconds), and has an internal RTC... if you set the internal clock on your helmet cam (or check your watch at the beginning to get a time sync) and use a Garmin (with an internal RTC), you could produce a video file with running tallies up the side for cadence, speed, heart rate, and even power output if you have a power meter that'll log those stats. You could even write a small script to calculate speed vs cadence to guess the gear, though with a freewheel that's unreliable. You could calculate acceleration stats pretty easily though (dv/dt). The only other interesting things to meter would be blood-oxygen content (finger clip or an LED in the wrist strap of a watch) and temperature.
I know, you'd look at the video and be like, "This is so impressive." That's about it. Not "With this I could..." because no you can't, it's a bunch of useless data. I mean unless you're training for a big ride like the Tour de France and they let you train by running the route for weeks, so you can do a complete stress analysis and see what your body's doing... but that's insane, and probably still way too much info.