I would to bring up an old topic that has been addressed before, which is how to account for muscle fatigue in AnyBody. I am aware that AnyBody does not have such capability yet, but it’s possible to run separate analyses using different muscle properties as an approximation. I wonder:
What are the muscle parameters to be considered? If I am interested in fatigue in a runner, shall I decrease the “Strength Scaling” parameter of the Foot/Shank/Thigh under HumanModel\Scaling\StrengthScaling; or shall I change the SpcificMuscleTensionSpine, StrengthIndixLeg, and SpecificMuscleTensionShoulderArm; or change the F0 parameter in a muscle? What will be most proper way to do it?
Do I need to use a difference C3D data to simulate fatigue? My understanding is, if the C3D remains the same (kinematics and GRFs are the same), unless the the internal forces needed to generate the necessary kinematics reaches the new (decreased) capacity, I shall expect the same predicted muscle/JRFs as the running the model with normal muscle strength, and the only difference will be greater Muscle Envelop, is that correct?
Thank you very much!