Date of download: 11/27/2018 Copyright © ASME. All rights reserved. From: Effect of Mechanical Loading on Electrical Conductivity in Human Intervertebral Disk J Biomech Eng. 2009;131(5):054505-054505-5. doi:10.1115/1.3116152 Figure Legend: Schematic of intervertebral disk showing sites and orientations of test specimens. AF indicates annulus fibrosus and NP indicates nucleus pulposus.

Date of download: 11/27/2018 Copyright © ASME. All rights reserved. From: Effect of Mechanical Loading on Electrical Conductivity in Human Intervertebral Disk J Biomech Eng. 2009;131(5):054505-054505-5. doi:10.1115/1.3116152 Figure Legend: Variation of electrical conductivity with increasing compressive strain for AF and NP tissues. For the AF tissue, the results for conductivity in three directions are shown: axial (A), circumferential (C), and radial (R). Variation bars signify standard deviation (SD). Statistical analysis showed a significant difference (p<0.05) between conductivity values for all groups except axial AF and circumferential AF (at all levels of compressive strain).

Date of download: 11/27/2018 Copyright © ASME. All rights reserved. From: Effect of Mechanical Loading on Electrical Conductivity in Human Intervertebral Disk J Biomech Eng. 2009;131(5):054505-054505-5. doi:10.1115/1.3116152 Figure Legend: Model prediction of normalized conductivity in human AF and NP tissues compared with experimental data. The value of FCD was assumed to be 0.2 mEq/ml at water volume fraction of 0.72. The values for α and β were taken from literature .