Yeah, I am not so sure why this story is so newsworthy. Tybee Island has more population near it. We in Georgia have laughed about the Tybee bomb for a while.
Attila,
You are correct and that in individual people/patients, BMI has no correlation to body fat or obesity. However, in population studies, it has a fairly good correlation, and that is why we use it in health statistics and in cardiac disease prevention models. The equation I gave came from a population study of about 1200 patients, with widely varying BMI's and then their body fat was measured. In adults, the equation I gave was fairly accurate--with an R-squared of.79 and a SEE of 4%. So you are correct, but the formula does work for a quick guess of BMI -- just as BMI is a quick guess of obesity or not. Link to the website with the formula here -- http://www.halls.md/bmi/fat.htm
She did not say 18% body fat. She said 18.1 BMI -- which is your body mass index. The quick equation for BMI to body fat is Adult Body Fat % = (1.20 x BMI) + (0.23 x Age) - (10.8 x gender) - 5.4, where male is 1 and female is 0. Assuming an age of 25, her body fat is around 22%
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Yeah, I am not so sure why this story is so newsworthy. Tybee Island has more population near it. We in Georgia have laughed about the Tybee bomb for a while.
Attila, You are correct and that in individual people/patients, BMI has no correlation to body fat or obesity. However, in population studies, it has a fairly good correlation, and that is why we use it in health statistics and in cardiac disease prevention models. The equation I gave came from a population study of about 1200 patients, with widely varying BMI's and then their body fat was measured. In adults, the equation I gave was fairly accurate--with an R-squared of .79 and a SEE of 4%. So you are correct, but the formula does work for a quick guess of BMI -- just as BMI is a quick guess of obesity or not. Link to the website with the formula here -- http://www.halls.md/bmi/fat.htm
She did not say 18% body fat. She said 18.1 BMI -- which is your body mass index. The quick equation for BMI to body fat is Adult Body Fat % = (1.20 x BMI) + (0.23 x Age) - (10.8 x gender) - 5.4, where male is 1 and female is 0. Assuming an age of 25, her body fat is around 22%