Schifferli et al reported an equation for estimating body fat mass based on information collected from bioelectrical impedance analysis (BIA). The authors are from the Universidad de Chile.
Patient selection: adults from 18 to 64 years
Parameters:
(1) sex (female = 0; male = 1)
(2) body weight in kilograms
(3) body height in cm
(4) resistance in ohms
index of resistance =
= ((height in cm)^2) / (resistance in Ohms)
fat-free mass in kg =
= (8.87 * (points for sex)) + (0.37 * (weight in kg)) + (0.48 * (index of resistance)) + (0.037 * (resistance in ohms)) - 22.43
Performance:
• The R^2 of the regression model was 0.96.
• The standard error of estimation was 2.58 kg
To read more or access our algorithms and calculators, please log in or register.
