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About LinkBacksThe healthy weight range widely used by doctors is based on a measurement known as the body mass index (BMI). You can work out your BMI if you know your weight and your height.
Calculate your BMI here
My BMI is: 23,2
The healthy weight range widely used by doctors is based on a measurement known as the body mass index (BMI). You can work out your BMI if you know your weight and your height.
Calculate your BMI here
My BMI is: 23,2
24.5
Which can't be true. i am not so close to overweight. Maybe i have mistaken my height. Must emasure myself again:D
Uhh
My BMI: 30.1
My actual body fat % (taken using BIA at the gym): 13%
I'm 5'9" and weigh about 204 pounds, but I'm also a health nut and very into weight lifting and exercise. A BMI of 30.1 would classify me as obese, but anybody with their sense of vision intact would be able to see that I am definitely not obese
The BIA (bioelectrical impedence analysis) is currently the best way to measure body fat percentage in a living person (still far from perfect mind you), and I would expect that more and more doctors will start using it now that it's getting more affordable. BMI only extrapolates well to the average population (people who are not athletes or body builders), and sadly doesn't apply very well to weight lifters, athletes, etc. :(
Isn't there a displacement test where you're submerged under water and weighed to get the most accurate reading? I'm not really sure if it is more accurate than the impedence test, but I assumed it was seeing that it takes a lot more effort (why would they do it kind of thing). My understanding is that your level of hydration is a factor in the impedence test.Originally Posted by neurowiz
Sorry neurowiz, I'm not trying to poop on your comment. I'm just curious about esoteric technical junk like this.
Looking for a tracker review? ---------> MIA, we'll figure out something else soon.
No, you're right. This is why posting at 3 AM is not a good idea. That sentence was actually supposed to be 2 separate ideas and somehow it all ended up combined into one, and half of the information didn't even make it out of my brain.
Here are the two points I was attempting to make:
1) BIA is the most cost effective way for measuring body fat percentage at home while expecting a reasonably accurate reading.
2) A technique using x-rays is currently the most effective way to measure body fat percentage in a living person, but it's very expensive and x-rays are not so nice to human cells.
The method you're thinking of involving water submersion involves finding the density and using it in a formula to calculate body fat percentage. It has very high precision, but I don't know how accurate it is since it is easily influenced by both bone and muscle density. Because of its high precision, it is often used as a mechanism for tracking changes in body fat for an individual. I don't know how often it is used to measure a baseline as I haven't come across it much, personally. It would definitely be interesting to find out more about it, because if it actually is more accurate than BIA then it might also be a cheaper method of finding body fat percentage. I actually forgot about this method until you mentioned it. Good call.
You're also correct that hydration level is one of the biggest confounds of the impedance method.
Last edited by neurowiz; 10-24-2009 at 04:38 AM.
28.2 damn... I'm to heavy
19.3. Seems okay for me.
18.2 :( but im trying for more^^
25.1 only recently started exercising daily (about a month ago).
Will have to recheck in another couple of months.
Q
keep in mind this does NOT take into account fat vs muscles...aka arnold schwarzeneggar (sic?) in his prime would have a high BMI because he weighed a lot, but he's obv not fat...better way is to use a scale with electrodes in it, which tells you the percent body fat in your body...so regardless of what this site says as to "bmi is a 'reliable' indicator of body fat"...not exactly true :)
My %BodyFat = 13.7
and my BMI from this site = 20.1
6'1" / 150lbs
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