Fig. 4.

Average number of integrins ($N=5$ per condition) for varying a line densities (contraction rate $\dot{c}=0.1$ μm/s, fiber stiffness $E=1.1$ MPa), b contraction rates (line density of $4.9\times {10}^{-2}$ μm^-2, fiber stiffness $E=1.1$ MPa, and c fiber stiffnesses (line density of $4.9\times {10}^{-2}$ μm^-2, contraction rate $0.1$ μm/s)