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From: jst on 23 Sep 2005 16:53
My wife just returned from he stress test with great results. She is 48
and in moderate condition from three a week one hour sessions at our
gym. The Dr said her max HR was 191. Doing the old 220 - age calculation
has me confused. She has always had very low blood pressure and has
eaten well and I know that the HR calculation doesn't apply to everyone.
When I had my stress test @ 46 I had a max HR of 176 which is more in
line with the calculation.
Any comments ??

From: joeu2004 on 23 Sep 2005 18:28
jst wrote:
> My wife just returned from he stress test with great results.
> She is 48 and in moderate condition from three a week one hour
> sessions at our gym. The Dr said her max HR was 191. Doing
> the old 220 - age calculation has me confused. She has always
> had very low blood pressure and has eaten well

Which is irrelevant to how high a person's MHR is. A person's
MHR is not a measure of fitness or "great results". It does
not depend on a person's "condition" -- although a person's
ability to reach nearly her MHR does depend on her
"conditioning". A person's MHR is based mostly on a her
genetics.

> and I know that the HR calculation doesn't apply to everyone.
> When I had my stress test @ 46 I had a max HR of 176 which is
> more in line with the calculation. Any comments ??

You answered it yourself. The age-based formulas (there are
several in common use) are merely statistical averages. They
all have a standard error of +/-12 or so.

So, making some common assumptions, your wife's chances of
being within +/-3 of her actual MHR -- 19 above her age-based
average -- as she had of being within +/-2 of her age-based
average, as you were.

The real question is: what was your wife's HR recovery rate?
A fast recovery rate is a measure of cardio fitness. Her
doctor shuld have determined the HR recovery rate as part of
the stress test.

Another useful question: at what %MHR did your wife hit her
lactate threshold? A high %MHR is a measure of cardio fitness.
Her doctor's may or may not have determined her lactate
threshold, depending on the diagnostic devices used during the
stress test. You might ask.

From: joeu2004 on 23 Sep 2005 18:48
I wrote:
> So, making some common assumptions, your wife's chances of
> being within +/-3 of her actual MHR -- 19 above her age-based
> average -- as she had of being within +/-2 of her age-based
> average, as you were.

Hmm, that sentence became the victim of over-editing.
It was intended to read ....

So, making some common assumptions, your wife's chances of
being within +/-3 of her actual MHR -- 19 above her age-based
average -- were nearly the same as her chances of being
within +/-2 of her age-based average, as you were.

From: jst on 23 Sep 2005 19:18
Thanks for the response, I will be asking him what her recovery rate was
and if there is anything else he can tell me.

joeu2004(a)hotmail.com wrote:

> I wrote:
>
>>So, making some common assumptions, your wife's chances of
>>being within +/-3 of her actual MHR -- 19 above her age-based
>>average -- as she had of being within +/-2 of her age-based
>>average, as you were.
>
>
> Hmm, that sentence became the victim of over-editing.
> It was intended to read ....
>
> So, making some common assumptions, your wife's chances of
> being within +/-3 of her actual MHR -- 19 above her age-based
> average -- were nearly the same as her chances of being
> within +/-2 of her age-based average, as you were.
>

From: Bubba Joe Tyrone Malone on 26 Sep 2005 14:46

<joeu2004(a)hotmail.com> wrote in message
news:1127514532.420424.51940(a)g47g2000cwa.googlegroups.com...
> jst wrote:
> The real question is: what was your wife's HR recovery rate?
> A fast recovery rate is a measure of cardio fitness. Her
> doctor shuld have determined the HR recovery rate as part of
> the stress test.

Interesting post -- is there any resource you know of for determining one's
own MHR based on recovery rates? I ask because I'm finding I don't feel all
that winded at 80 percent of what my age-based MHR should be, so I usually
take it up 20 bpm or so for intervals.


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