The Ground Reaction Force has 9 components:

1. 3 components for the Force (FORCE);
2. 3 components for the Center of Pressure (COFP); and
3. 3 components for the Free Moment (FREEMOMENT).

The Center of Pressure is computed from the ANALOG signals recorded from the force platform according to the calculations specified by the force platform manufacturer and the location of the force platform in the laboratory. The resulting signals are resolved in the Laboratory Coordinate System.

This data type is populated by both force platforms and force structures.

The Center of Pressure signal is stored in the COFP folder in the Visual3D data tree.