Equations of Hastuti et al for Total Body Water (TBW) in Indonesian Males

Description

Hastuti et al used biolectrical impedance to evaluate Indonesian males. The authors are from Universitas Gadjah Mada, Kagawa Nutrition University, Bond University and the University of Tasmania.

Patient selection: males, ages 18 to 65 years

Method of analysis: bioelectrical impedance analysis (BIA)

Parameters:

(1) height in centimeters

(2) weight in kilograms

(3) resistance in Ohms

(4) reactance in Ohms

total body water in kilograms =

= (0.213 * (weight)) + (0.327 * ((height)^2) / (resistance)) + (0.055 * (reactance)) + 0.167

percent total body water =

= (-0.512 * (weight)) + (0.407 * ((height)^2) / (resistance)) + 65.627

where:

• Resistance index (RI) = ((height)^2) / (resistance)

• TBW is reported in kilograms rather than liters.

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