Background: The Forbes equation relating fat-free mass (FFM) to fat mass
(FM) has been used to predict longitudinal changes in FFM during weight change but
has important limitations when paired with a one dimensional energy balance
differential equation. Direct use of the Forbes model within a one dimensional energy
balance differential e... read morequation requires calibration of a translate parameter for the
specific population under study. Comparison of translates to a representative sample
of the US population indicate that this parameter is a reflection of age, height,
race and gender effects.
Thomas, Diana, Sai Krupa Das, James A. Levine, Corby K.
Martin, Laurel Mayer, Andrew McDougall, Boyd J. Strauss, and Steven B. Heymsfield.
"New fat free mass - fat mass model for use in physiological energy balance
equations." Nutrition & Metabolism 7, no. 1 (12, 2010):