Obtain Fiber Lengths Directly from Joint Angles
Posted: Sat Nov 03, 2018 4:02 pm
Hi all,
Given a model, is it possible to obtain muscle fiber lengths directly from joint angles? I know the Computed Muscle Control and Forward Dynamics tools produce a states files containing the muscle fiber length for each muscle, but if users can load the joint angles file (produced by Inverse Kinematics, input to Inverse Dynamics) and a model into the GUI and see the model play out the motion, aren't muscle lengths necessarily computed just for watching that simulation? If muscle lengths are computed just for watching that simulation, how can they be obtained?
(I'm asking as I want to obtain muscle fiber lengths, given joint angles or excitations, in a faster way than Computed Muscle Control and Forward Dynamics.)
Thank you,
Stephanie
Given a model, is it possible to obtain muscle fiber lengths directly from joint angles? I know the Computed Muscle Control and Forward Dynamics tools produce a states files containing the muscle fiber length for each muscle, but if users can load the joint angles file (produced by Inverse Kinematics, input to Inverse Dynamics) and a model into the GUI and see the model play out the motion, aren't muscle lengths necessarily computed just for watching that simulation? If muscle lengths are computed just for watching that simulation, how can they be obtained?
(I'm asking as I want to obtain muscle fiber lengths, given joint angles or excitations, in a faster way than Computed Muscle Control and Forward Dynamics.)
Thank you,
Stephanie