Fig. 3

Bioelectrical impedance at different frequencies of modulus and phase: mean ± standard deviation data of annulus fibrosus, endplate cartilage, sub-endplate cortical bone, and posterior longitudinal ligament
Bioelectrical impedance at different frequencies of modulus and phase: mean ± standard deviation data of annulus fibrosus, endplate cartilage, sub-endplate cortical bone, and posterior longitudinal ligament