I'm using Plug-in-gait_MultiTrial and I have added the ForcePlates_GRFPrediction file to the model. Moreover, I have modified the directions of the force plates and the gravity. The subject is in standing posture and weighs 80 Kg. The problem is that the normal component of the FGlobal parameter of each force plate is around 40 N, although it should be approximately 400 N.
I have modeled the same C3D file with the Plug-in-gait_Simple model using the FullBody_GRFPrediction.main file. Everything is fine, and there is no problem with this modeling.
Is there any possibility that this problem occurred because I have replaced the ForcePlates.any file with the ForcePlates_GRFPrediction.any file in the LabSpecificData.any without further modifications?