16 lines (16 with data), 459 Bytes

AnyFolder Reactions = 
{
  // Reaction forces and moments on the pelvis segment are required because there is no support force on both feet.
  AnyReacForce PelvisReactions = 
  {
    AnyKinLinear lin = 
    {
      AnyRefFrame& pelvis = ....BodyModel.Trunk.SegmentsLumbar.PelvisSeg;
    };
    AnyKinRotational rot = 
    {
      Type = RotAxesAngles;
      AnyRefFrame& pelvis = ....BodyModel.Trunk.SegmentsLumbar.PelvisSeg;
    };    
  };
};