Re: Body Mass Calculator


vernon wrote:
"PeterB" <pkm@xxxxxxxxxxxxxxx> wrote in message
news:1146599740.737431.209090@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

vernon wrote:
"PeterB" <pkm@xxxxxxxxxxxxxxx> wrote in message
news:1146591318.850308.208680@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

vernon wrote:
"PeterB" <pkm@xxxxxxxxxxxxxxx> wrote in message
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David Wright wrote:
In article <1146497093.261275.197450@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
PeterB <pkm@xxxxxxxxxxxxxxx> wrote:
http://nhlbisupport.com/bmi/

Please note that "body mass index" is not terribly useful for
anyone
aside from sedentary populations. Just because it says you're
'overweight' doesn't mean you are, and just because it says you're
NOT
overweight isn't an automatic reason to relax.

Nonsense. If you fall within the recommended ranges, you know
you're
better off (statistically) than those who don't.

The heavier you are, the more it hurts when you fall and the harder it
is
to
get up.

My stupidity being said, body mass calculator is often not usefull
only
because of innacuracy.
For instance, I have large bones and have a better than normal muscle
mass.
When I use the "calculator", I am "fat"
When I use the water displacement, impedance measurement or
professional
pinch test, I am very lean.

BMI is based on what's true for most people, but will overestimate body
fat in a few (probably less than 2%.) It will even underestimate body
fat in a few, mainly the elderly. So yes, constitutional differences
(even those related to ethnicity) can be a factor. A friend whose BMI
is over 30 is more fat than muscle, even though he exercises. He's an
example of the average person for whom BMI is a useful tool because it
tells him how he is doing.



BMI is a general term. I agree with what you say. My point was that BMI
can be estimated or presented in several different ways, often wrong.

I don't agree it's often wrong, unless you mean it can't attribute the
same percentage of body fat to any two people with the same BMI.

My point is SOLELY how so called BMI is determined. There can be as much as
30% difference based on how it was determined.

Gotcha. I'm just saying it's a useful tool for *most* people
(including me, with a BMI of 24.7)

Water displacement is the only one that works for all people.

An aqueous solution if there ever was one. ;)

.

Relevant Pages

  • Re: Body Mass Calculator
    ... vernon wrote: ... body mass calculator is often not usefull ... BMI is based on what's true for most people, ... fat in a few, mainly the elderly. ...
    (misc.health.alternative)
  • Re: Body Mass Calculator
    ... vernon wrote: ... body mass calculator is often not ... BMI is based on what's true for most people, ... fat in a few, mainly the elderly. ...
    (misc.health.alternative)
  • Re: Body Mass Calculator
    ... PeterB wrote: ... body mass calculator is often not usefull only ... BMI is based on what's true for most people, ... fat in a few, mainly the elderly. ...
    (misc.health.alternative)
  • Re: Body Mass Calculator
    ... vernon wrote: ... body mass calculator is often not usefull ... BMI is based on what's true for most people, ... fat in a few, mainly the elderly. ...
    (misc.health.alternative)
  • Re: Body Mass Calculator
    ... PeterB wrote: ... body mass calculator is often not usefull only ... BMI is based on what's true for most people, ... fat in a few, mainly the elderly. ...
    (misc.health.alternative)