simtk.org

https://simtk-confluence.stanford.edu:8 ... timization

From the link above, in Study 3, we can see how the optimal force of the reserve actuator affects the muscle activation and force while performing static optimization. May I know where I can view the mathematical equation to explain that?

https://simtk-confluence.stanford.edu:8 ... tion+Works

This link only explains how static optimization works without reserve actuator.

From your second link, the equation is similar to the last equation. For any actuator (including reserve actuators), you can use its control value as another "activation" in the problem.

The code that controls all of this is here: https://github.com/opensim-org/opensim- ... Target.cpp

Thank you so much for your reply.