Janmahasatian et al developed equations for estimating a patient's fat-free mass (FFM). The authors are from the University of Queensland (Brisbane), Queensland University of Technology and the University of California in San Francisco.
NOTE: The authors describe an equation for fat-free mass and use it as an estimate of lean body weight. Lean body weight is associated with a small percent of body fat, not a zero percent.
Patient selection: adults 18 to 82 years of age
Parameters:
(1) body weight in kilograms
(2) body height in meters
(3) gender
body mass index (BMI) =
= (body weight in kilograms) / ((body height in meters)^2)