irectly assess body fat] if you are a man, but 35% if you are a woman. " Someone very muscular may have a BMI over 25 but have little body fat, he says. Body fat percentage ''norms" are different for men and women, according to the American Council on Exercise (ACE). For instance, it classifies a body fat percentage Nike Flyknit Black Men
The study population of Hispanics, for instance, .
The formula is:Or, in other words, the hip measurement in centimeters divided by the height in meters times the square root of height minus 18. A man 5 feet 9 inches tall who weighs 210 pounds and has 44. 4 inch hips would have a BMI of 31, a BAI of 31. 2, and a DXA result of 34. 3% Flyknit Racer All Colorways fat, so the BAI is closer to the DXA result. A woman 5 Nike Flyknit Free Motion
of 25% Nike Roshe Flyknit Gray
to 31% for women and 18% to 24% for men as ''acceptable'' ranges, with athletes and fit people having lower percentages. Developing the BMI AlternativeBergman's team evaluated 1,733 Mexican Americans and 223 African Americans using the new BAI formula and compared how it correlated with their percent body fat as measured by DXA (dual energy X ray absorptiometry). DXA scans measure body fat and muscle and bone mineral; it's viewed as the gold standard by experts. The researchers chose hip circumference and height, Bergman says, because both are strongly correlated with the percent of body fat. Knowing the body weight is not necessary in the new method.
8, and a DXA of 28. 4% fat. Besides the need for more research to see if the BAI holds for whites and other ethnic groups, Bergman say research is need to determine how well the BAI can predict health outcomes such as higher risk for heart problems and diabetes. BMI Alternative: Will It Catch On?''The notion of coming up with an alternative method is merited," Comana tells WebMD. BMI, he says, is limited. For instance, he agrees that it overestimates body fat in lean people, especially male athletes with high muscle mass. However, the new research has limitations, he says.
feet 4 inches tall who weighs 127 with 37 inch hips would have a BMI of 21. 7, a BAI of 27.
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