Fig. 4

Multifrequency electrical impedance myography detects the development of altered bioelectrical impedance properties in the caudal muscles of SOD1G93A zebrafish. EIM was conducted at multiple frequencies ranging from 1 to 1000 kHz, and phase angle, reactance, and resistance parameters were graphed. Graphs of (A) phase angle, (B) reactance, and (C) resistance in wildtype and SOD1G93A zebrafish at 20 weeks of age (n = 15). Graphs of (D) phase angle, (E) reactance, and (F) resistance in wildtype and SOD1G93A zebrafish at 40 weeks of age (n = 15–18).