Spatial dependence of the phase in localized bioelectrical impedance analysis

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Abstract
The variety of phase functions, θ(z) = arctan X(z)/R(z), observed earlier on the thighs of healthy and seriously ill subjects via localized bioelectrical impedance analysis, can be represented by a model which combines realistic thigh shapes with homogeneous, axially symmetric conductivity tensors. While quantitative results depend sensitively on the way current is injected, it appears to be generally true that dθ/dz < 0 whenever r > z (and vice versa), where r and z are the phases of the radial and longitudinal conductivity components.

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