Fig. 6.

Epimuscular force transmission with knee angle extension. Force transmission estimates predicted by the model $(\mathrm{\Delta }{F}_{\mathrm{LGPL}}^{\mathrm{mod}})$ plotted a as a function of knee angle corresponding to the applied proximal $\text{LG}+\text{PL}$ length changes $(P_R^{\mathrm{prox}})$ and b as a function of both knee angle and connective tissues stiffness. In the top panel, predicted values of intermuscular and extramuscular force transmission for a ${90}^{\circ }$ knee angle are highlighted for the evaluated intermuscular connectivity conditions, i.e., normal (NO) and enhanced connectivity (TI). The secondary axis expresses the predicted $\mathrm{\Delta }{F}_{\mathrm{LGPL}}^{\mathrm{mod}}$ as a percentage of the mean $\text{LG}+\text{PL}$ proximal tendon force (${\text{F}}_{\mathrm{LG}+\mathrm{PL}}$, proximal: $11.5\pm 0.2\text{N}$). In the bottom panel, linear interpolation of force transmission estimates between NO (green) and TI (red) over the range of corresponding knee angles