simtk.org

I am not an expert in biomechanics, please pardon me if you find my question too basic, or if it doesn't make sense. Actually I am kind of using OpenSim to learn biomechanics.

In the documentation on the forward problem on "How It Works", I see what theories and equations the software uses to predict/simulate the kinematics of a human model from certain inputs. Please allow me to clarify if this is correct:

Muscle activation is not the same as muscle excitation.
EMG is the the experimental equivalent/operationalisation of the concept of "muscle excitation"
Muscle activation is synonymous to force produced

Are they correct?

There is some information on this topic in the "Muscle Model Theory and Publications" section of the documentation (https://simtk-confluence.stanford.edu:8 ... blications). Please see, in particular, the "First-Order Activation Dynamics" page (https://simtk-confluence.stanford.edu:8 ... n+Dynamics) and the references listed at the bottom of that page.