BMI-Club
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del.icio.usBMI Criticism
Calculation:
The BMI calculates mass per surface. To calculate the surface the size will be multiplied with itself. This is a correct formula for a square, but not for a human.Meaning:
The Body Mass Index is only a number. The strict meaning of the WHO (you can find at BMI Meaning) dosent take care about age or other. Sportsmen get very quick a BMI over 25 and are overweight, when trusting the BMI.
This are two male bodys with the same BMI. The left one got much muscle mass, the right one has more fat. In this case the BMI doesent inform about the fitness of the man. (images made with MakeHuman).
Children:
The meaning fpor kids is a simple statistic calculation. There is no real reason for this, except the more simple handling for scientists. For smaller kids the BMI shouldn't be used.Result:
The health of someone should not be checked simply by it's BMI. If a butcher will calculate the fat of a pig with BMI, he will lose his licence. A real health problem is in visceral fat. But the BMI dosent care about it.When someone has a BMI over 40, its sure that he is overweight and will get some problems with health. But this means a weight of 122m5 kg at a size of 1,75 m. I think in this case no one has to calculate the BMI to recocnize that.