>> On the other hand, while driving home, the monitor did briefly flash up
>> 206 BPM,
> 
> ANything can interferes with the signal between the chest strap and the 
> watch can cause problems.  If I cycle under power cables, or near an 
> electrified railway track it screws up.  Cars are notorious for 
> electrical interference, so I wouldn't believe anything it says whilst 
> in a car.

Last night, I drove to my dance class, and I drove home again. And on 
both journeys, the monitor went crazy just as I drove past a specific 
roundabout. I have no idea why, but that seems like one hell of a 
coincidence...

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> My dad claims his sometimes exceeds 200 BPM.

See link below...

> I must admit, I didn't think that was an outrageous number until everybody 
> here started being all like "dude, if it hits 150 BPM you'd nearly be in a 
> coma!"

http://upload.wikimedia.org/wikipedia/commons/a/ad/Exercise_zones.png

If I do a "harcore" cycle ride for an hour or so my average is usually about 
155, which seems inside the 152-171 zone identified by that chart for my 
age.

> That's fine, but it also occasionally does this when I'm sitting in the 
> house too. Why the heck would it do that?

Spurious electrical noise from things switching on/off?

> Last night, I drove to my dance class, and I drove home again. And on both 
> journeys, the monitor went crazy just as I drove past a specific 
> roundabout. I have no idea why, but that seems like one hell of a 
> coincidence...

High voltage electric cables above or below the ground?  Or a train line?

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scott wrote:
> http://upload.wikimedia.org/wikipedia/commons/a/ad/Exercise_zones.png
> 
> If I do a "harcore" cycle ride for an hour or so my average is usually 
> about 155, which seems inside the 152-171 zone identified by that chart 
> for my age.

I thought your heart rates were determined by your current level of 
fitness rather than just your age.

>> Last night, I drove to my dance class, and I drove home again. And on 
>> both journeys, the monitor went crazy just as I drove past a specific 
>> roundabout. I have no idea why, but that seems like one hell of a 
>> coincidence...
> 
> High voltage electric cables above or below the ground?  Or a train line?

In fact, I seem to remember it happened to be that same location the 
*first* time I noticed it go wrong in the car too. So that's three 
malfunctions, all on the same road. Certainly sounds like an 
interferrence problem, doesn't it?

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> I thought your heart rates were determined by your current level of 
> fitness rather than just your age.

I am not an expert, but I think those ranges for the different sorts of 
exercise are just depending on your age.  How much actual work you have to 
do to get your heart rate in to those ranges will depend on how fit you are.

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scott wrote:
>> I thought your heart rates were determined by your current level of 
>> fitness rather than just your age.
> 
> I am not an expert, but I think those ranges for the different sorts of 
> exercise are just depending on your age. 

Actually, the ranges are some percentage of your maximum heart rate. If you 
don't care to measure your maximum heart rate, then you can use a chart and 
assume you have a fairly average maximum heart rate.

-- 
Darren New, San Diego CA, USA (PST)
    C# - a language whose greatest drawback
    is that its best implementation comes
    from a company that doesn't hate Microsoft.

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4c47d6f1@news.povray.org...
>
> I read that about 120 years is close to the maximum lifespan for humans. 

> just under four and a half billion (1e9) heartbeats @ 70 bpm.
> If we lived for 1 billion heartbeats like other animals then 27 years is 
> our lot.
>
 120years is the maximum theorical lifespan with all the knowledge in 
medecine, nutrition, etc... applied
You may call that "natural" but then it is not the same nature as animals, 
is it? ;)

Marc

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On 22/07/2010 4:53 PM, M_a_r_c wrote:

> 4c47d6f1@news.povray.org...
>>
>> I read that about 120 years is close to the maximum lifespan for humans.

>> just under four and a half billion (1e9) heartbeats @ 70 bpm.
>> If we lived for 1 billion heartbeats like other animals then 27 years is
>> our lot.
>>
>   120years is the maximum theorical lifespan with all the knowledge in
> medecine, nutrition, etc... applied
> You may call that "natural" but then it is not the same nature as animals,
> is it? ;)
>

True, and you could say that human behaviour is not "natural" anyway.

-- 

Best Regards,
	Stephen

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Stephen wrote:
> True, and you could say that human behaviour is not "natural" anyway.

Please explain what "unnatural" means, other than being synonymous with 
"human behavior"?

-- 
Darren New, San Diego CA, USA (PST)
    C# - a language whose greatest drawback
    is that its best implementation comes
    from a company that doesn't hate Microsoft.

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On 23/07/2010 5:21 PM, Darren New wrote:
> Stephen wrote:
>> True, and you could say that human behaviour is not "natural" anyway.
>
> Please explain what "unnatural" means, other than being synonymous with
> "human behavior"?
>

LOL
Not natural and unnatural and not the same. :-P
I meant that we (humans) modify our behaviour for our overall benefit. 
For instance a dog will overeat until it cannot easily stand then 
continue to eat. Whereas we will diet.*
Well that is the theory.


* If anyone has been affected by any of the views expressed in this post 
then grow a skin. :-P
-- 

Best Regards,
	Stephen

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Orchid XP v8 wrote:

> I achieved 195 BPM during that dance, and that's still the 
> maximum count for the entire evening.

Amusingly (or not?) even when I dance "normally" I hit 180 BPM or so.

Now I can understand that when I go out and utterly dance my socks off, 
I might hit a high number. But even when I'm dancing comparatively 
casually in class the numbers aren't all that much lower. Interesting...

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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