Fig. 2
FDB fiber size, type, and cross-sectional area (CSA). A, B Example images of single myofibers isolated from FDB muscle. Blue arrows indicate viable myofibers. Red arrows indicate non-viable myofibers. Only viable myofiber lengths were measured. C Relative frequency of FDB muscle fiber lengths. D Fiber type percentage of whole FDB muscles (n = 4). E Average individual CSA (μm2) of each muscle fiber type in the FDB. F Representative FDB cross section stained for type I (blue), type IIa (green), type IIx (no stain), type IIb (red), and dystrophin (purple). *, p < 0.05. Data are mean ± SEM