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 Ground Reaction Force vector 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 signal is resolved in the Laboratory Coordinate System.

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

The Force vector is stored in the FORCE folder in the Visual3D data tree.