Richard bergman call the new measure the relative fat mass index or rfm. Woolcott and his co author dr.
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Rfm measurement body fat. From the 365 anthropometric indices generated the final selected equation was as follows. Measure your height and waist in either meters and centimeters or feet and inches enter your sex and hit calculate for an estimate. To determine relative fat mass rfm you need to measure your height as well as your waist circumference. This fat mass index is considered a simple anthropometric procedure easier to estimate than other body fat percentage methods and more accurate than the body mass index bmi. It plugs your height and your waist circumference into a formula and the resulting number is roughly equal to your body fat percentage. Their recent study found this simple measure is better at predicting body fat percentage than bmi.
Not only is it far more accurate than the old bmi measurement its also a lot easier since it only uses your height and waist circumference measurements you dont even need a bathroom scale. On this page is a body fat estimate calculator. In other words rfm was almost as good a gauge of body fat as a specialist bit of medical equipment and all it needs is a tape measure. This new formula was developed by cedars sinai investigators and its known as relative fat mass index or rfm. 76 20 x heightwaist circumference how to interpret relative fat mass results. A healthy rfm would be an rfm where youre not obese.
To measure your waist place the tape measure right at the top of the hip bone and reach. If rfm corresponds to dxa. 64 20 x heightwaist circumference women. 64 20 heightwaist circumference 12 sex named as the relative fat mass rfm. Relative fat mass rfm. The researchers compared the rfm with specialized high tech dexa scans which is considered a more precise way of measuring bone.
It uses w a ist to height ratio to estimate body fat percentage either measured by caliper or dxa scan. They arbitrarily defined obesity as dxa measured body fat percentage 339 for women and 228 for men. Based on data from 3456 adult patients in the us the rfm measurements closely matched those taken by a high tech dxa body scan widely considered the gold standard for measuring body tissue bone muscle and fat. Rfm uses height and waist size to assess whole body fat levels. Looking at the equations another way relative fat mass rfm in both metric and american measurements is. Body fat estimate calculator using waist to height ratio rfm advertising disclosures.
The relative fat mass rfm index estimates body fat percentage based on the ratio of height and waist measurements.
Gallery of Rfm Measurement Body Fat
