Scafoglieri et al reported an equation for predicting appendicular lean mass. The authors are from multiple institutions in Europe.
Patient selection: > 65 years of age with functional limitation in Europe
Parameters:
(1) height in centimeters
(2) resistance by BIA in Ohms at 50 kHz
(3) sex (female = 1, male = 0)
(4) body weight in kilograms
(5) reactance in Ohms
impedance index =
= ((height)^2) / (resistance)
appendicular lean mass in kilograms using GE Lunar =
= (0.168 * (impedance index)) - (1.931 * (points for sex)) + (0.132 * (weight)) + (0.017 * (reactance)) + 1.821
appendicular lean mass in kilograms using Hologic =
= (0.196 * (impedance index)) - (2.554 * (points for sex)) + (0.060 * (weight)) + 4.957
