Fig. 3
Random permeable barrier model (RPBM) analysis. Left: Axial (top, blue) and radial (bottom, orange) diffusion vs. diffusion time of the right semitendinosus (filled circles) and the right rectus femoris (open circles) at TP-0 for a representative subject. While the changes in axial diffusivity over diffusion time are subtle, the decrease in radial diffusivity with increasing diffusion time is more pronounced. The dashed lines show the RPBM fits to the radial diffusivity (black: semitendinosus, gray: rectus femoris). Right: Line plots of the fiber diameter, a, and the permeability, κ, averaged over all muscles, for each subject (n = 10, dashed gray lines). The mean and standard deviation over all subjects are overlaid in black. * p ≤ 0.008.
