diff --git a/spine-monogame/spine-monogame-example/ExampleGame.cs b/spine-monogame/spine-monogame-example/ExampleGame.cs
index 8a48428f5..6ad2dae76 100644
--- a/spine-monogame/spine-monogame-example/ExampleGame.cs
+++ b/spine-monogame/spine-monogame-example/ExampleGame.cs
@@ -90,9 +90,10 @@ namespace Spine {
 			// to the skeleton
 			state.Update(deltaTime);
 			state.Apply(skeleton);
+			skeleton.Update(deltaTime);
 
 			// Update the transformations of bones and other parts of the skeleton
-			skeleton.UpdateWorldTransform();
+			skeleton.UpdateWorldTransform(Skeleton.Physics.Update);
 
 			// Clear the screen and setup the projection matrix of the skeleton renderer
 			game.GraphicsDevice.Clear(Color.Black);
@@ -143,8 +144,9 @@ namespace Spine {
 		public override void Render (float deltaTime) {
 			state.Update(deltaTime);
 			state.Apply(skeleton);
+			skeleton.Update(deltaTime);
 
-			skeleton.UpdateWorldTransform();
+			skeleton.UpdateWorldTransform(Skeleton.Physics.Update);
 
 			// Clear the screen and setup the projection matrix of the custom effect through the
 			// "Projection" parameter.
@@ -200,7 +202,9 @@ namespace Spine {
 		public override void Render (float deltaTime) {
 			state.Update(deltaTime);
 			state.Apply(skeleton);
-			skeleton.UpdateWorldTransform();
+			skeleton.Update(deltaTime);
+
+			skeleton.UpdateWorldTransform(Skeleton.Physics.Update);
 
 			game.GraphicsDevice.Clear(Color.Black);
 			((BasicEffect)skeletonRenderer.Effect).Projection = Matrix.CreateOrthographicOffCenter(0, game.GraphicsDevice.Viewport.Width, game.GraphicsDevice.Viewport.Height, 0, 1, 0);
@@ -229,7 +233,7 @@ namespace Spine {
 			SkeletonJson json = new SkeletonJson(atlas);
 			json.Scale = 0.5f;
 			SkeletonData skeletonData = json.ReadSkeletonData("data/mix-and-match-pro.json");
-
+			
 			skeleton = new Skeleton(skeletonData);
 			AnimationStateData stateData = new AnimationStateData(skeleton.Data);
 			state = new AnimationState(stateData);
@@ -259,7 +263,9 @@ namespace Spine {
 		public override void Render (float deltaTime) {
 			state.Update(deltaTime);
 			state.Apply(skeleton);
-			skeleton.UpdateWorldTransform();
+			skeleton.Update(deltaTime);
+
+			skeleton.UpdateWorldTransform(Skeleton.Physics.Pose);
 
 			game.GraphicsDevice.Clear(Color.Black);
 			((BasicEffect)skeletonRenderer.Effect).Projection = Matrix.CreateOrthographicOffCenter(0, game.GraphicsDevice.Viewport.Width, game.GraphicsDevice.Viewport.Height, 0, 1, 0);
diff --git a/spine-monogame/spine-monogame/spine-monogame.csproj b/spine-monogame/spine-monogame/spine-monogame.csproj
index 6bab1904a..19e940491 100644
--- a/spine-monogame/spine-monogame/spine-monogame.csproj
+++ b/spine-monogame/spine-monogame/spine-monogame.csproj
@@ -57,6 +57,12 @@
     <Compile Include="..\..\spine-csharp\src\IkConstraintData.cs">
       <Link>spine-csharp\IkConstraintData.cs</Link>
     </Compile>
+    <Compile Include="..\..\spine-csharp\src\PhysicsConstraint.cs">
+      <Link>spine-csharp\PhysicsConstraint.cs</Link>
+    </Compile>
+    <Compile Include="..\..\spine-csharp\src\PhysicsConstraintData.cs">
+      <Link>spine-csharp\PhysicsConstraintData.cs</Link>
+    </Compile>
     <Compile Include="..\..\spine-csharp\src\IUpdatable.cs">
       <Link>spine-csharp\IUpdatable.cs</Link>
     </Compile>