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Lame Thing # 17 about BMI


 
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TRAILRYDER444
8/8/07 10:22 A
 
 
I would agree that the BMI is not a very good scale in fact it has pegged me wrong for the past 20 or so years. I was in the best shape of my life (prior to an accident that prevented me training for 2 years) and it had me listed as grossly obese. I stand 5'10 and weighed 275lbs with a small percent of bodyfat. I did cardio five days a week for 30 mins, lifted heavy 6 days a week twice a day. I'm just now able to start training hard once more and my weight dropped to about 250-60 lbs or so. This site I hope will provide me with some extra motivation from a diet stand point as I have developed a few bad habits. The BMI still has me as obese and when I applied for life insurance they gave me a hassle due to the BMI. I had to explain with pictures my situation and it was an act of congress to deal with these people.
ASPENJULES
8/6/07 11:52 A
 
 
So guys suffer from the freshman 15 too?? Is it bad that I'm glad to hear that? LOL

*Getting fat is a butal feedback loop of pain, which encourages more sedentary behavior, which leads to getting fat...*

Truer words were never spoken, HOKIECPE! Add in there getting older... it's a challenge, isn't it?
HOKIE_SKEPTIC
8/6/07 11:23 A
 
 
I've felt that bodily sabotage about running. Being a tall guy, I've always held more weight than your average person on my knees. Once I got over 230 or so (freshman year of college), I couldn't run on consecutive days without knee pain. I'm working my way down to where I can run more consistently. Getting fat is a brutal feedback loop of pain, which encourages more sedentary behavior, which leads to getting fat...
ASPENJULES
8/3/07 2:32 P
 
 
Hey guys, thanks for that army spreadsheet (especially whoever posted the direct link because I was NOT able to get there before that). I guess I've got some measuring to do though I know they would say "I don't *think* so" if they could through their laughing. Do you know how accurate it is or isn't if you're measuring yourself?

And yeah, Splatman... sure changes things when your body itself sabotages your ability to exercise. LOL
SPLATMAN
8/3/07 1:40 P
 
 
I used to be able to run with the big dogs, so to speak, until my knees started getting bached about and I actually broke my left knee cap, well a big chip off of it anyway, and not moving like I used to helped to pack on some serious pounds. I was up to nearly 240 for a while and even at 6'2" you could tell I was out of shape.

Aren't body injuries wonderful?
NYY_FAN
7/23/07 2:10 P
 
 
That sucks, I did not have that problem for me it was I ran constantly until I injured my back when I had to slam on the emergency brake (stop running) the weight caught up to me. The height thing I was joking I am 5’11”

You doing good though
HOKIE_SKEPTIC
7/23/07 2:05 P
 
 
Seriously, though, my height was part of the problem for me. I grew so quickly as a kid (as you can see) that I could eat anything and as much of it as I wanted with no ill effects. It was only when I was 18 that I stopped growing up and started growing out. But still, at my height, it doesn't show as much, even when I was 100 lbs overweight! It took me some time to convince myself how dire the situation was.
NYY_FAN
7/23/07 1:59 P
 
 
Ok, sorry I read it backwards in that case what type of diet was it I need a couple more inches of height.
HOKIE_SKEPTIC
7/23/07 1:56 P
 
 
?? I was gaining height. 6'4" at 15 years old in 1995, 6'6" all ages listed after that.
NYY_FAN
7/23/07 1:53 P
 
 
Hokiecpe, what kind of diet helps you lose weight and height? I need to know because I am short enough and I want to avoid it!
HOKIE_SKEPTIC
7/23/07 10:14 A
 
 
What site was that?
KENC1971
7/22/07 6:51 P
 
 
The military one seems a bit too loose, and doesn't seem to count my weight too much into the equation.

I found a site that has you do a tape of the stomach at the belly button, waist at the widest point of the hips, widest point of a clenched forearm, and the wrist between where the bone ends and the hand begins.

Also, I guess taking your bodyfat measurements too often might give a false gain/loss due to error or other factors, so word is to wait a month between readings.

-Ken
SPLATMAN
7/22/07 5:31 P
 
 
See - now there's a formula that might work for more guys than the BMI. The BMI is a guide but doesn't take in to consideration certain factor of the body. Knowing why your body needs and tailoring your intake to balance your activites in relationship to your weight goals sounds like a better way to go. Or use the two in conjunction if you so desire!
HOKIE_SKEPTIC
7/22/07 3:41 P
 
 
I agree that BMI doesn't work for lots of folks. What do you guys think about BMR - basic metabolic rate: a formula for figuring out how many calories you should eat in a day?
SPLATMAN
7/20/07 1:01 P
 
 
So....what then shall we do about the results? Ready to bust out some cardio the get the metabolism up and burn some fat?

I'm up for it!
KENC1971
6/15/07 3:18 P
 
 
sparkpeople breaks up the line for the page...
armybytes.com/cgi-bin/download.pl?file=1
that's direct to the file. It's a zip that has an excel file in it, so you need excel to use it.

(Put http:// in front of it)

I tried it... apparently I'm at 23% bodyfat. The military says 24% is the top within limits. The high desired bodyfat for my age is about 20%, so I need to lose 5lbs of fat to get there.

Interesting, to say the least.
NYY_FAN
6/15/07 3:12 P
 
 
OK, I got it and I'm ready to get rid of it. Any takers?
SPLATMAN
6/15/07 2:51 P
 
 
Huh....I just gave it a try and I'm at 16% body fat and it all worked out correctly.

http://www.armystudyguide.com/content/useful_files/apft_and_weight_control/automated-body-fat-conten.shtml
is the file I used.
NYY_FAN
6/15/07 2:40 P
 
 
I did that and nothing happened
SPLATMAN
6/15/07 2:36 P
 
 
Put in your age, height, weight and then the measurements from your neck and abdomen [horizontal at the navel] and the formula does the rest. Usually, the neck is measured, then the abs, then the second neck, and so on. If any of the measurements are more than 1/4 of an inch off you might get a flag raised in the formula but it does work pretty well.
NYY_FAN
6/15/07 1:03 P
 
 
I tried it and thought that I was computer literate. Well I have not figured it out.
SPLATMAN
6/14/07 10:27 P
 
 
Did you try that spreadsheet link from earlier? See what that has to say, just for shingles and grins.
KENC1971
6/14/07 10:45 A
 
 
BMI says I am just about overweight. Ha! Whatever.

Give me a bodyfat percentage and physical fitness test over "(Weight in lbs) * 703 / (height in inches, squared)" any day.
BIGDADDY16
6/13/07 11:00 P
 
 
Hey dont feel bad I am 6'2 at 159 now, but I am right in my BMI but will be up to 193 accourting to SP. Even if I see 193. It always seems that skinny wants to gain and heavy wants to lose and knowbody is ever really happy. I mean I would love to gain around 20lbs but if I stop eating and working out for a week I will drop 10lbs. It is so tiring trying to keep up with what is what as far as BMI and SP goes that I will gain until I can't or stop at around 185lb cause I think that would shoot me in between both. But there is my rant sorry to take up so much time but wife can only hear so much..ty guys
NYY_FAN
6/13/07 5:27 P
 
 
I agree with yawl,

I’m 5’11” and I have a very large bone structure as most Irish descendents.

To check what size bone structure you have hold your wrist.
Try and touch your thumb and middle finger.
If you can touch your thumb and middle finger your bone structure is “Normal” if they over lap then it’s “Small” if they don’t even touch then it’s “Large”
Obviously, everyone has too use their own hand for this test.

I also have muscle.
My Dr. wants me at about 200lbs. (with my frame) That will give me a 34 waist. and a 52 – 54 chest

According to SP I’ll still be Obese; furthermore, for me to be “healthy” at 200lbs I would have to be about 6’3”.

Yeah Right I’ll be getting right on it.
SPLATMAN
6/3/07 8:56 P
 
 
Well you do have to enter your height and weight to the spreadsheet so those factors are accounted for in the formula. If you were to use the Army Regulation 600-9, all those factors are manually entered and you have to use charts to get the rest of the figures for the final math. I've double checked the math in the spreadsheet to the manual formula and it's good to go according to the regulation.

Oh ya - 78% of all percentages are made up on the fly.

ROBERTINTHESKY
6/2/07 3:42 P
 
 
People need to remember that BMI has a simple purpose - to measure populations in general. It's used when they say "...30% of people are overweight...". Measuring a persons height and weight is quite simple, doing a caliper measurement is a lot slower and therefore much more expensive. The formula has 2 variables, you can't really get much simpler than that.

The formula would have a natural variation of about 10-15%, depending on muscle and bone content.

If I were to design a new formula, that say had 3 variables - height, weight and waist circumference, it would likely be much more accurate, but the calculation would almost certainly require a variable to the power of a non-integer, something the majority of calculators cannot do. Plus of course the majority of people would not even know how to work it out and you have a recipe for getting massively wrong values.

BMI is simple - but it works - generally because it is so simple, most people can calculate it, most people can differentiate BMI 15 from BMI 20, it's been around about 150 years, so its not too bad I guess.
SPLATMAN
6/2/07 9:54 A
 
 
Very true and a good point to make. A friend of mine in Germany had biceps as large as my thigh and was solid muscle - also a large framed body. Then again he had been a member of the all-Army power lifting team. According to the formula he was well overweight and he had the tank test perfromed and was at 8% BF. There's always an exception to every rule - with no exceptions! '-)
BENLEWIS70
6/2/07 9:01 A
 
 
i prefer the SYF formula.

can you look down and "See Your Feet". i could have a 1% body fat and still be morbidly obese. i was an offensive tackle in college so i have a bit of a wide frame, while i dont powerlift anymore i still have a large muscle content on my weight. i hide weight well, at 345lbs i asked my DR if i needed to lose weight and he told me it does not concern him becuase i am just a bigger guy and not overly fat.
SPLATMAN
6/1/07 8:55 P
 
 
That spreadsheet is the formula used by the Army until last September and according to the Army doctors I spoke with, is accurate within 1%. The only better test is the water tank test. The new formula for the Army is WAY off, if you ask me, but I'm no physiologist so what do I know?

I still use this formula and it's dead on, in my opinion.
SNIKWAD
6/1/07 12:36 A
 
 
Thanks for this link!!!
SPLATMAN
5/30/07 9:38 P
 
 
So where does one find this HAIMWI scale? ya - just google it.....

GolfPro - thanks for this link:

http://www.armystudyguide.com/content/useful_files/apft_and_weight_control/automated-body-fat-conten.shtml

MACMAN1
2/26/07 1:32 P
 
 
I think the HAIMWI formula comes pretty close to being right for me. I have my "ideal" weight being 150. Using the formula a male who's 5 foot 7 1/2 inches tall with a medium frame should weigh 145. Pretty close I think.
GYPSYHEART
2/26/07 12:07 P
 
 
The HAIMWI comes a lot closer to reality for me: small frame 5'6" = ideal weight 117 lbs. I have weighted that...about 16 years ago, at age 39. I began serious exercise and weight training at 40 and "bulked up" to 122. My body fat, by a vacuum chamber calculation (expensive to have done but VERY accurate) was 9%. This is extremely low for a woman. yet by HAIMWI scale I would have been 5 lbs overweight. The BMI would have had my 117lb weight being underweight. bottom line: body fat % tells the truth.
APPRIL
2/26/07 10:10 A