Van Loan and Mayclin reported an equation for predicting lean body mass using bioelectric impedance analysis (BIA). The authors are from the US Department of Agriculture (USDA).
Parameters:
(1) height in centimeters
(2) weight in kilograms
(3) resistance in Ohms at 50 kHz
(4) sex
(5) age in years
Parameter
Finding
Points
height in cm
0.000985 * ((height)^2)
weight in kg
0.3736 * (weight)
resistance
-0.0238 * (resistance)
sex
male
0
female
-4.2921
age
-0.1531 * (age)
volume of total body water in liters =
= SUM(points for all of the parameters) + 17.7868
Performance:
• R^2 0.917 with SEE 3.231 kg.
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