Kim et al reported an equation for predicting appendicular skeletal muscle mass in a Korean adult. The authors are from Seoul National University and Ajou University in South Korea.
Patient selection: Korean adults > 65 years of age
Parameters:
(1) height in centimeters
(2) resistance by BIA in Ohms at 250 kHz
(3) sex (female = 0, male = 1)
(4) body weight in kilograms
(5) age in years
impedance index =
= ((height)^2) / (resistance)
appendicular lean mass in kilograms =
= (0.104 * (impedance index)) - (0.05 * (age)) + (2.954 * (points for sex)) + (0.055 * (weight)) + 5.663
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