Hi. Is there any full-body model that uses bottom-top approach for obtaining spine loads that can be used for lifting tasks simulation. I believe the fullbody Plug-in-gait_Simple model uses a top-down approach for obtaining spinal forces. I want to know if there is any valid model that uses bottom-top approach for finding spinal forces.
Please explain what you mean by top-down, bottom-top in more detail.
Normally in AnyBody, if a model has measured GRF it will use a reaction on the pelvis, and if there are no GRF measured it will use GRF prediction and have a very weak residual on pelvic.
It would also be possible to place the residual on other body parts if needed, is this what you are looking for?