Posted On:9/01/2008 2:33pm
Originally Posted by HappyOldGuy
BMI's are a useful measure for people who have a reason to be concerned about whether their weight is appropriate. Athletes or people who train like them are generally past that point. Unfortunately the measures to get an accurate body fat % are expensive and not exactly portable (impedance and calipers both suck). So BMI is a useful guideline.
Also, as you join the senior brigade, weight is probably a small risk factor independent of composition. But that depends on the study.
I havent found much use for impedence either, but calipers can be useful ... no so much as to establish body fat percentage, but more to monitor change. I find them useful to let me know if my BF is going up or down ... I adjust roadwork (and sometimes diet) accordingly.
Posted On:9/01/2008 2:35pm
Originally Posted by Nihonto
I am 5'9" and walk around at 175 lbs on an average day. I would not be considered heavy if you were to look at me, maybe slightly muscular. When I lift weights my 1RM values are around intermediate (+/-) depending on the lift - according to this: http://www.exrx.net/Testing/WeightLi...Standards.html
I can also run a few miles with no problem at all or roll in my BJJ class for an hour without a real break.
According to available BMI calculators I am "Overweight" and have an increased risk of kicking the bucket: http://www.cdc.gov/nccdphp/dnpa/heal...=175&inches=69
According to the same standards if I weighed 125 lbs I would be considered a "Normal" adult.
WTF??? I am pretty sure I would die from trauma due to a brisk wind if I weighed 125. Do healthy adult 5'9" males really walk around at 125?
And why don't most BMI calculations take sex into account? Female and male BMI should not be the same. IMO this is dangerous misinformation, and BMI numbers should be completely ignored unless you are not physically active at all.
Or maybe I'm just a fat ass in denial ...
You're in good company. This link is to a list of olympian athletes that are either overweight or obese according to BMI:
Gold Summit Martial Arts Institute
Posted On:9/01/2008 2:40pm
Style: Ba Zheng Dao Quan
huh, huh, "Coxless four"
Authentic Kung Fu in Buffalo, NY
Posted On:9/01/2008 6:24pm
Style: creonte on hiatus
It has always been said that BMIs innacurately predict athletic/more-than-avg muscular people as obese.
Read this for flexibility and injury prevention, this, this and this for supplementation, this on grip conditioning, and this on staph. New: On strenght standards, relationships and structural balance. Shoulder problems? Read this.
My crapuous vlog and my blog of training, stuff and crap. NEW: Me, Mrs. Macho and our newborn baby.
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t-nation - Dissecting the deadlift. Anatomy and Muscle Balancing Videos.
The street argument is retarded. BJJ is so much overkill for the street that its ridiculous. Unless you're the idiot that picks a fight with the high school wrestling team, barring knife or gun play, the opponent shouldn't make it past double leg + ground and pound - Osiris
Posted On:9/01/2008 8:52pm
Style: Silat, New to Hsing- Yi
BMI has more to do with life expectancy. the heavier u are in proportion to height no matter how low ur bodyfat the more likely u are to die younger. according to my doctor
is badder than you
Posted On:9/01/2008 8:54pm
I hate BMIs, and I lose a bit of my sanity (and hair) every time I see some study of "obesity" where the researchers' only tool is BMI. No disrespect intended to Judah Maccabee, but I've grown progressively more convinced that the BMI has done more harm than good in terms of statistical "findings" every time I see a new one trotted out.
There was a good article from The New Republic on the subject, but it's not on their website any more.
Edit: antman, your doctor is not entirely correct.
Relative to the normal weight category (BMI 18.5 to <25), obesity (BMI ≥30) was associated with 111 909 excess deaths (95% confidence interval [CI], 53 754-170 064) and underweight with 33 746 excess deaths (95% CI, 15 726-51 766). Overweight was not associated with excess mortality (–86 094 deaths; 95% CI, –161 223 to –10 966). The relative risks of mortality associated with obesity were lower in NHANES II and NHANES III than in NHANES I.
-Flegal et al., "Excess Deaths Associated With Underweight, Overweight, and Obesity"
Last edited by TheRuss; 9/01/2008 8:56pm at .
Posted On:9/01/2008 8:55pm
Originally Posted by Nihonto
waist is 31-32 depending on before vs. after lunch ...
Ya got nothing to worry about.
Posted On:9/01/2008 10:05pm
thanx Macho. I got the gist of it even though it could probably be dumbed down somemore for me. I try to look at bmi relative to bodyfat composition.
are there any mortality rate studies on athletes.
Posted On:9/02/2008 6:56am
Style: Trad Ju Jitsu
Originally Posted by The_Tao
No. BMI's for athlete's are bullshit. I know this because it would state that some power lifters are morbidly obese
Agreed. After years of Circuits leading to Weights Circuits leading to Weights, I was 13stone 3lbs (same as Rocky Marciano!) and 5'7". Nobody could keep up with me in Eyeballs out mode in the normal Circuit Class and in straight forward Weights and Rower, the Gym Instructors couldn't keep up with me - except the Pec Dec which is not my friend.
13stone 3lbs = 83Kgs = 185lbs (I think). And I was cycle commuting over 50 miles a week plus my warm up before the weights was 30mins on Treadmill (off-peak times).
Muscle weighs more than Fat. The BMI is for fat bastards who do not exercise.
(Wish I could do that training regimen today - ah, well, slowly does it...)
Posted On:9/02/2008 11:45am
BMI, my nemesis. I recently tried to get some additional life insurance and the rate quote came back over double what I anticipated due to BMI. I weigh about 220-lbs, am 5'11" with about a 34-in waist. My chest is about 44-46". Neck is about 17-18"
If I were to comply with the weight range in the BMI, I'd look malnourished. Seriously, I wouldn't look right at all. I was always just under the maximum weight for my height in the military too, but I always had perfect PFT's. How many 200-lb+ guys do you know that can run 3 miles in under 18 minutes?
One of the guys I roll with has it worse than me though. He has a 32-in waist and his chest is about 50" or more, and I think he weighs about 240-lbs and about the same height. He's freakishly strong.
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