Figure 2

Figure 2

Relationships between surface EIM and needle EIM in adult zebrafish skeletal muscle. Multifrequency (1 kHz–1 MHz) graphs for EIM parameters of (A) phase, (B) reactance, and (C) resistance. Data displayed were acquired using a surface electrode (black) and a needle electrode (gray). Surface EIM data were collected. Then, needle EIM was collected on the same animal (n = 14; 8 months of age). Surface EIM and needle EIM data for each animal were plotted. Multifrequency graphs for (D) phase, (E) reactance, and (F) resistance are also shown as mean ± standard deviation. Correlation matrices for (G) phase, (H) reactance, and (I) resistance. Blue circles are positive correlations and red circles are negative correlations. White indicates zero correlation. Darker and larger circles represent higher correlation values, and lighter and smaller circles represent lower correlations.