Castro-Porras et al reported an equation for estimating the fat-free mass (FFM) in a Mexican adult. The authors are from the National Autonomous University of Mexico and Insituto Politecnico Nascional in San Isidro.
Patient selection: Mexican adult
Parameters:
(1) height in cm
(2) sex
(3) weight in kilograms
Parameter
Finding
Points
height
0.44 * (height)
sex
male
6.88
female
0
weight
0.28 * (weight)
fat-free mass in kg =
= SUM(points for all of the parameters) - 46.03
percent fat mass =
= ((weight) - FFM) / (weight) * 100%
Interpretation:
• The WHO definition of obesity is a percent fat mass >= 35% for women and >= 25% for men.
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