Skip to main content
. Author manuscript; available in PMC: 2019 Feb 21.
Published in final edited form as: J Biomech. 2016 Nov 28;51:17–25. doi: 10.1016/j.jbiomech.2016.11.062

Figure 3.

Figure 3

Illustration of the subtendons defined in the finite element model. A: Proximal view of model displays subtendons associated with the soleus, medial gastrocnemius, and lateral gastrocnemius muscles. B: distal view of the free tendon displays the location of the three subtendons at this level, which are rotated relative to the locations in A. C: Longitudinal views of the tendon reveal the twisted orientation of the subtendons. D: Passive and active muscle forces were modeled as stiffness and pressure boundary conditions, respectively. Passive simulations consisted of stiffness boundaries only while eccentric simulations consisted of both stiffness and pressure boundaries.