BMI question (2 Viewers)

hairspray

Member
Joined
Mar 21, 2008
Messages
342
Gender
Female
HSC
2009
Im very confused about thw Body Mass Index system. I have a BMI of 18.75, am i overweight? And if so... between what numbers should i be to be healthy?
 

Nat3skiz

Member
Joined
Apr 29, 2007
Messages
272
Gender
Male
HSC
2008
hairspray said:
Im very confused about thw Body Mass Index system. I have a BMI of 18.75, am i overweight? And if so... between what numbers should i be to be healthy?
i think thats counted as underweight in the BMI system. BMI is more of an assumption, and in alot of cases can be fairly innacurate. If you look underweight then perhaps its got this one right.
 

kony

Member
Joined
Feb 10, 2006
Messages
322
Gender
Undisclosed
HSC
2007
if you're east Asian, then you're in the healthy range. if you're anything else, you're underweight.

Asians just have lower tolerance to fat.
 

suzieee

Member
Joined
Sep 6, 2006
Messages
100
Gender
Undisclosed
HSC
2007
i was studying this today for an exam next week... my textbook says anything below 18 is underweight, but on the same page it says anything below 18.5 is underweight. even my textbook is confused :)
 

suzieee

Member
Joined
Sep 6, 2006
Messages
100
Gender
Undisclosed
HSC
2007
oh and my doctor told me i was slightly underweight and my bmi is 18.3 so i guess hes going by the anything under 18.5 one
 

+Po1ntDeXt3r+

Active Member
Joined
Oct 10, 2003
Messages
3,527
Gender
Undisclosed
HSC
2003
kony said:
if you're east Asian, then you're in the healthy range. if you're anything else, you're underweight.

Asians just have lower tolerance to fat.
the BMI was a system use for rough indications
underweigh= at risk about 2x for vitamin defiencies and some malnutrition syndromes

normal= average risk

overweight = 2 x risk normal of Cardiovascular disease..

obese = 10 x risk normal of cardiovascular disease..

its sumfing lik tat ...

the normal 20-25 range is based on a caucasian study

the East asian one.. is lik 18-23.. and is based on a hong kong study.. those of african descent its normal is higher (? 20-26) due to bone and muscle density

the BMI is realli a screening tool not a definative test... like body builders with BMI = obese.. have lik lean body masses of <5% when most normal ppl are lik 10-20% for males..
 

quik.

Member
Joined
Mar 29, 2006
Messages
781
Location
Sydney
Gender
Male
HSC
2006
Asians have a totally different BMI graph thing (I don't know what to call it) altogether. Pretty sure a fair few races do.
 

Friend of Ana

New Member
Joined
Apr 19, 2008
Messages
15
Location
Strewn across a barren textbook.
Gender
Female
HSC
2008
You're not overweight.

I'm trying to get a BMI of < 14 at the moment.

It's currently 13.99999...

So frustrating.

That said, DON'T try the same thing. My predicted UAI is 30 at the moment. And plummenting.
 

chelsea girl

everybody knows
Joined
Oct 12, 2006
Messages
617
Gender
Undisclosed
HSC
N/A
if your BMI is under 20 you are underweight and may face possible health risks.
 

Nat3skiz

Member
Joined
Apr 29, 2007
Messages
272
Gender
Male
HSC
2008
chelsea girl said:
if your BMI is under 20 you are underweight and may face possible health risks.
this isn't necessarily true at all.
 

Omium

Knuckles
Joined
Feb 7, 2008
Messages
1,738
Location
Physics
Gender
Male
HSC
2007
hairspray said:
Im very confused about thw Body Mass Index system. I have a BMI of 18.75, am i overweight? And if so... between what numbers should i be to be healthy?
You are severly overweight :uhoh:, I highly suggest you get on a diet and do that surgery where they staple your stomach.

A good 10-15 BMI should do the trick :read:
 

tahlsy31191

Member
Joined
Nov 28, 2007
Messages
114
Location
North West NSW
Gender
Female
HSC
2008
BMI is the biggest load of crap. It was designed by a mathematican who had nothing to do with dietary.
I mean, it doesn't account for muscle and bone mass. According to BMI test, Lance Armstrong was considered overweight during the 1993 Tour De France.
My BMI is 17.2, I have a naturally thin build (52kgs) and I am 174cm tall. It is really unrealistic seeing as I eat what I want when I want. Genetics need to be to accounted for!
If you want a more accurate idea, do the hip to waist ratio.
 

^CoSMic DoRiS^^

makes the woosh noises
Joined
Jan 13, 2005
Messages
5,274
Location
middle of nowhere
Gender
Female
HSC
2006
According to BMI I'm underweight and always have been but it's bullshit. I have a small frame, it doesn't mean I'm going to get a vitamin deficiency or that I don't eat enough, quite the contrary. If anything I probably need more muscle weight. Moral of the story don't trust what your BMI implies about your health, trust how you feel.
 
Joined
Nov 4, 2007
Messages
649
Location
under your bed
Gender
Female
HSC
2008
Friend of Ana said:
You're not overweight.

I'm trying to get a BMI of < 14 at the moment.

It's currently 13.99999...

So frustrating.

That said, DON'T try the same thing. My predicted UAI is 30 at the moment. And plummenting.
With your maths skills it's no wonder you made that UAI prediction.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 2)

Top