Body Mass Index (BMI)

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Body Mass Index (BMI) is an indicator of whether a person is underweight, normal, or overweight, or . It is calculate by dividing the body mass by the of the height of the person.



BMI


The Body Mass Index changes with age, especially in but also in adults. For an adult a BMI of over indicates that a person is obese. Values between and 30 indicate that a person is overweight. An ideal weight for a person gives a value between 20 and . The BMI for an underwight person will give a value less than .

The BMI is not always a good indicator. The BMI makes assumptions about distribution of and bone mass.

The categories do not take into account account different proportions of , bone, cartilage, and water mass. Muscular people, athletes and , have high BMI values, but are not fat.


BMI


Lance Armstrong was classified as using the BMI formula when he was in the 1993 Tour de France!