skinny runners
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what is buffed? I did one where you had to hold on to some handles and an electric current went through. came out just below mid 20s I think "not bad for a woman of your age" was the comment (He was plainly surprised it was not higher being a woman of rather short and square stature)
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Mrs H. - nope godmother
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i dont really see how bmi can be used to look at eather you are under weight / over weight.....i end up with a bmi of 18...and im def not underweight, not for a runner anyway......i have done various 'fat' tests thought and these seem far more reliable..putting me in the middle of "normal athlete" which was in the bottom section of normal.
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Jene - addict
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robbo wrote:yeah! it's a lot easier to have a high bmi when you're overweight compared to when you're buffed- because fat weighs more!!!
wrong, muscle weighs four times as much as fat.
though I'm not a doctor or sports scientist so if anyone has a real problem check with someone proffesional. (just so i'm not sued )
- Guest
Body Mass Index is just a crude measure of physique calculated by dividing weight in kg by the square of your height in metres . The 'ideal' is to be between 20 and 25 (or 18.5 as the webpage suggests, new one on me)! But it's use is limited, whilst Beckham has a BMI of 20, and is physically atleast, perfectly healthy, there are plenty of people with BMI of 20 who can't run to the corner shop. Conversly, Matthew Pinsent has a BMI of 28, so is seemingly over weight, but that's due to huge muscle density, he's not really what I'd call a porker.
BMI is only a guide, but is a useful crude guide in that if you see someone who has a BMI of over 25, you'll know quite quickly if it's fat or muscle that's casued the increase.
If you (Mrs H.) had an electric current passed through you, you will have had a measure of body fat percentage. (That or a twisted nurse who electricuted you for the hell of it.) The electric current measure is a much better calculation of body fat, but then again is harder to do.
BMI is only a guide, but is a useful crude guide in that if you see someone who has a BMI of over 25, you'll know quite quickly if it's fat or muscle that's casued the increase.
If you (Mrs H.) had an electric current passed through you, you will have had a measure of body fat percentage. (That or a twisted nurse who electricuted you for the hell of it.) The electric current measure is a much better calculation of body fat, but then again is harder to do.
"Don't try and fulfil your maximum potential, it's disappointing when you realise that all you are capable of doing is eating less cheese." Dylan Moran
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Migsy - white
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It's true, muscle weighs more than fat. However, to reach the BMI levels that are classed as clinically obese, I reckon it's probably quite difficult to put on that much muscle.
I think BMI is a good simple (and cheap!) way for people to compare themselves to the rest of the population, and works well as an indicator of the extremes. ~There's probably far more reliable ways of looking at weight and fat if you want something more accurate an indicator. I'm not sure about these body fat tests, our home one always tells me I'm obese so I'm pretty sceptical! Ones used in gyms etc though are probably quite accurate.
I think BMI is a good simple (and cheap!) way for people to compare themselves to the rest of the population, and works well as an indicator of the extremes. ~There's probably far more reliable ways of looking at weight and fat if you want something more accurate an indicator. I'm not sure about these body fat tests, our home one always tells me I'm obese so I'm pretty sceptical! Ones used in gyms etc though are probably quite accurate.
Will? We've got proper fire now!
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Becks - god
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aaaaagghhh, too many posts before I got my reply to Mrs H up. Anyway, in response to some comments, BMI has to be corrected for people under 18. Adults and kiddos BMI just ain't interchangable. Just to complicate things ...
"Don't try and fulfil your maximum potential, it's disappointing when you realise that all you are capable of doing is eating less cheese." Dylan Moran
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Migsy - white
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body fat percentage, as measured by having an electric current passed thru you is the more accurate measurement but I'm not sure about the scales that claim to do it, we have some too and the measurements fluctuate like weight, ie depending on time of day, if you've eaten etc which they shouldn't. It could be cos they pass current from one leg to the other instead of a hand to a foot which is more likely to get a picture of the whole body. I can see how people get fixated with their weight as there's a fine balance between thinking about eating sensibly and getting obsessive but making yourself ill is not worth it.
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cj - yellow
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it makes me really sad to see people with eating disorders and i dont think i can fully understand how they must feel as i just love food too much. but i can understand the motives though because i have felt bad about my weight at times and i think it is crazy how many girls actually feel stuff like this. how come it seems to be more common in girls?
it's all fun
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m - nope young team
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BMI is also confusing since the calculators available seem to give different results. I used the one from the BBC and got a different result to the one I got with the earlier linked BMI calculator. The BBC also give a different figure for the underweight/normal boundary.
It must also be remembered that dramatic weight loss can also happen while eating a fair amount. If you up your level of training then you need to increase your calorific intake as well. I got caught out quite significantly a couple of years ago when I started training regularly and ended up losing a large chunk of weight (I went from the top of the normal BMI section to a little underweight in about six months).
It must also be remembered that dramatic weight loss can also happen while eating a fair amount. If you up your level of training then you need to increase your calorific intake as well. I got caught out quite significantly a couple of years ago when I started training regularly and ended up losing a large chunk of weight (I went from the top of the normal BMI section to a little underweight in about six months).
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Simon - brown
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The BMI stuff is interesting - but I think it's pulling us away from the main point of the debate. Several of you have said you know of people who have adopted this strategy in order to improve their performance over the short term - but surely the coaches and people who look after our top end athletes are on the look out for this and are constantly guarding and warning against the athletes grasping at a short term solution at a long term cost - are there any coachy/trainer type people following this debate - how are you dealing with it - and elites - what advice are you getting on how to guard against this?
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Mrs H. - nope godmother
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