Figure 4.

F-v relation of an isolated half-sarcomere model. Shown is the relation for constant rate coefficients (red dash-dotted line), for variability in f₀ only (blue dotted line), and for additional variability in g₀ (blue dashed line and turquoise solid line). To depict the Hill relation in its typical form, the x-axis is inverted to show shortening contractions on the right.