Surface Electrical Impedance Myography Detects Skeletal Muscle Atrophy in Aged Wildtype Zebrafish and Aged <i>gpr27</i> Knockout Zebrafish.

In aged animals, there was an overall trend toward decreased phase at low frequencies (<10 kHz), decreased reactance at almost all frequencies, decreased resistance at frequencies <60 kHz, and increased resistance at high frequencies (250 kHz).

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Nominally significant findings were also observed at other frequencies ( Figure 8 G–I).

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