VO2 Max and resting HR

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2004-08-17 11:22 AM

Veteran
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Colorado Springs
Subject: VO2 Max and resting HR
I am curious as to what relationship these two items have. Since my HRM uses the RHR in the VO2 Max calculation. I have not taken the test since the first week I was training. At that time my RHR was 70 and V02Max was 41, I took it several times on different days with the same result. I took it again this morning and was surprised to see my RHR had dropped to 57 and my V02 Max was up to 53. That's a 29% increase in V02 Max and a 32% increase in RHR. It seems kinda off to me, so maybe I will take it again tomorrow. Each time I have done it, it has been after a rest day and in the morning when I wake up. How good is the Polar Own Zone test? I assume the RHR is at least correct, which makes me happy. I was inactive for a few years there and I am 27... I think that's all the relevant info...

2004-08-17 11:30 AM
in reply to: #49139

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Champion
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Subject: RE: VO2 Max and resting HR
Some info here: http://www.breakawayskate.com/skate/articles/heart1.html and http://www.breakawayskate.com/skate/articles/heart2.html

I'm still searching online for something a bit more explicit.
2004-08-17 11:30 AM
in reply to: #49139

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Elite
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San Diego
Subject: RE: VO2 Max and resting HR
How are you testing your VO2 max?
2004-08-17 11:34 AM
in reply to: #49139

Veteran
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Colorado Springs
Subject: RE: VO2 Max and resting HR
I'm using a Polar S720i HRM...
2004-08-17 11:50 AM
in reply to: #49148

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Champion
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Subject: RE: VO2 Max and resting HR
madcow - 2004-08-17 8:30 AM

How are you testing your VO2 max?


There are some good ways to measure you VO2max and limVO2max here: http://www.competitionzone.com/articles/tips-practical-consideratio...

Obviously, it's not as accurate as a test performed by professionals, but it is a good gauge. And if performed regularly, you can track your performance over time.
2004-08-17 11:58 AM
in reply to: #49139

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Subject: RE: VO2 Max and resting HR
thanks for the info Karen

2004-08-17 12:06 PM
in reply to: #49139

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Calgary, Alberta
Subject: RE: VO2 Max and resting HR
I think the relationship between the 2 is that rhr is used to determine mhr using using the Karvonen formula:
Heartrate = ((Max HR-Resting HR)*%X/100)+Resting HR. (where %X =%MAX, e.g. 60)

Then VO2 Max can be estimated using this formula: %MHR=0.64 * %VO2 Max + 37 (I got this from this site http://www.brianmac.demon.co.uk/vo2max.htm

So, a lower rhr would give you a higher mhr and thus a higher VO2 max.

If you have been training for a while, your rhr would have dropped, though that looks like a pretty big difference from your original rhr. From what I remember from my physiology classes, the cardiovascular system is quick to adapt to training, so it is possible that it did change that much--particularly if you having been focussing on LSD training.

you got me thinking now!! I am going to have to check my old texts to make sure i am right!!!
2004-08-17 12:09 PM
in reply to: #49139

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Elite
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Subject: RE: VO2 Max and resting HR

Hi Aphoric,

The Polar Own Index is a test that correlates of the heart rate variabity (how unsteady the heart rate is) at rest with VO2 max.   In other words, those crazy Fins went out and measured the standard deviation of the heart rate of a bunch of people and also measured their VO2 Max and found that the two were correlated.  The Own Index test measures your HR variability and computes a number that assumes your correlation is the same as the people that they tested. 

I don't put much stock in the number but I have to admit that I have tried the test.  I get about the same numbers as you.

The article about the correlation test was on the www.polar.fi web site at one time. 

2004-08-17 12:11 PM
in reply to: #49139

Veteran
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Colorado Springs
Subject: RE: VO2 Max and resting HR
Wow, now that's some detailed info, may take me a while to digest it. Only one thing that confuses me. I thought that max HR did not change. Even though my RHR is lower, my max still says the same, according to whatever formulas Polar uses, but my V02Max did change...
Thanks for the awesome information!
2004-08-18 2:27 PM
in reply to: #49139

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Extreme Veteran
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Subject: RE: VO2 Max and resting HR

Thanks for the info.

I started a thread about this a couple of days ago, and nobody answer me back.



Edited by charlie 2004-08-18 2:27 PM
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