about ground reaction force applied to the GaitLowerExtremity


In the gait example “GaitLowerExtremity (AMMRV1.3)”, the model is driven by the joint angles calculated by the trajectory of the markers. This is realized through [SIZE=3]#include[/SIZE] “JointsAndDriversOptimized.any” [SIZE=2]by using the data from a .txt. However, I cannot figure out how the ground reaction force is applied to the model. Is it applied to the force plate first and then to the part foot in contact with the plate, or applied directly to the foot? Which part of the script specifies how this is realized. [/SIZE]
[SIZE=2]Thanks in advance.[/SIZE]

Hi Jerry,

The ground reaction force is defined in the file ForcePlateType4AutoDetection.any. It is included at the top of the main file. It is in fact a class, and it is used later in the Environment file. If you look at the definiton in the ForcePlateType4AutoDetection.any you will see that the recorded force is applied to the Force plate segment and then it is transmitted to the foot.

Best regards, Sylvain.