Description

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)

 

fat free mass in kilograms =

= (9270 * (body weight)) / ((A * 1000) + (B * BMI))

Factor

Male

Female

A

6.68

216

B

8.78

244

 


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