"Weighing body fat"

"yared22311" <[email hidden]> wrote in message
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Quoted message said:

Weighing body fat
Hydrodensitometry, or hydrostatic weighing, is considered to be the
gold standard in the health and fitness fields for its accuracy and is
used mainly for research, though it is costly and time-consuming.
at http://www.washtimes.com/metro/20050103-095927-1425r.htm

Is there an affordable domestic meter which can monitor the
body weight , bone , muscle and fat ? How much does it cost ?

Kam

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Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

"yared22311" <[email hidden]> wrote in message
news:[email hidden]

Quoted message said:

Weighing body fat
Hydrodensitometry, or hydrostatic weighing, is considered to be the
gold standard in the health and fitness fields for its accuracy and is
used mainly for research, though it is costly and time-consuming.
at http://www.washtimes.com/metro/20050103-095927-1425r.htm

Is there an affordable domestic meter which can monitor the
body weight , bone , muscle and fat ? How much does it cost ?

Kam

--
Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

" Is there an affordable domestic meter which can monitor the
body weight , bone , muscle and fat ? How much does it cost ?"

The techniques mentioned in the original consist of putting a person in a
tank of water. Because fat and other body parts have different specific
gravities the amount of body fat can be measured by the differences in
flotation measured for one's dry weight. There are calipers to measure
fat folds in certain body areas and an electrical based meter that
measures body resistance because fat has a different resistance to current
then does other body parts. For general purposes one can use the body
mass index which compares one's statistical ratio of weight to height,
which reflects percent of body fat. See to calculate it for yourself:

http://nhlbisupport.com/bmi/bmicalc.htm

The standard tables and formulas one sees on the web are not accurate for
people from s. asia. Research done shows that a bmi of 25 is the upper
range for a normal weight/height ratio for most of the world's population
but something like 23 for those from s. asia. These numbers reflect where
risk factors start to rise for various diseases/disorders when the bmi
exceeds those numbers.

"markd" <[email hidden]> wrote in message
news:[email hidden]

Quoted message said:

http://nhlbisupport.com/bmi/bmicalc.htm

The standard tables and formulas one sees on the web are not accurate for
people from s. asia. Research done shows that a bmi of 25 is the upper
range for a normal weight/height ratio for most of the world's population
but something like 23 for those from s. asia. These numbers reflect where
risk factors start to rise for various diseases/disorders when the bmi
exceeds those numbers.

Good , thanks but when a person is loosing weight how does he
know what he is loosing - bone , muscle or fat ?

Kam

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Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

How do those calculations work? Seems to me that you've got four
variables - the masses of 1) fat, 2) bone, 3) muscle, 4) water.
You've got two variables 1) weight of the body, 2) volume of the body.
(The bouyant weight of the body can be calc'd from those two.)
Doesn't seem like you've got enough measurements to fix the bodyfat
percentage. Of course, you can make assumptions like assuming a bone
mass for a given height, but that seems fraught with error.
Adam Becker

<[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

For general purposes one can use the body
mass index which compares one's statistical ratio of weight to height,
which reflects percent of body fat. See to calculate it for yourself:

BMI is an unreliable method of determining bodyfat percentage. One may have
a low BMI while having a high percentage of bodyfat. Conversely, someone
with a BMI considered "obese" may have a very low bodyfat percentage. My
BMI, for example, is 30. This qualifies as "obese". However, my bodyfat
percentage (as determined by hydrostatic weighing) is 14%, a quite "healthy"
number.

"with a BMI considered "obese" may have a very low bodyfat percentage. My
BMI, for example, is 30. This qualifies as "obese". However, my bodyfat
percentage (as determined by hydrostatic weighing) is 14%, a quite
"healthy""

Body builders as well as anorexic models are un-natural distortions.
Most of the population reside in the fat middle of the bell curve which
describes how bmi reflects body fat. The two groups above reside in the
narrow tails of the curve and don't reflect the norm. Btw, body building,
and models, folk aren't healthy by default, the former can have bulk at
the expense of other health goals and the latter even more likely so.