diff --git a/osi_object.proto b/osi_object.proto
index 9d802b680..3868eb3ff 100644
--- a/osi_object.proto
+++ b/osi_object.proto
@@ -1172,6 +1172,20 @@ message MovingObject
             //
             optional bool missing = 5;
 
+            // The velocity of the bone.
+            //
+            // Reference System is the root, defined by bbcenter_to_root
+            // (\c PedestrianAttributes::bbcenter_to_root).
+            //
+            optional Vector3d velocity = 6;
+
+            // The orientation rate of the bone.
+            //
+            // Reference System is the root, defined by bbcenter_to_root
+            // (\c PedestrianAttributes::bbcenter_to_root).
+            //
+            optional Orientation3d orientation_rate = 7;
+
             // The type of the bone.
             //
             // \image html OSI_PedestrianModelHierarchy.jpg