diff --git a/Runtime/HumanoidControl/Scripts/HumanoidControl.cs b/Runtime/HumanoidControl/Scripts/HumanoidControl.cs
index 60eb909..0335173 100644
--- a/Runtime/HumanoidControl/Scripts/HumanoidControl.cs
+++ b/Runtime/HumanoidControl/Scripts/HumanoidControl.cs
@@ -1404,15 +1404,15 @@ namespace Passer.Humanoid {
         }
 
         [HideInInspector]
-        private Vector3 lastHumanoidPos;
+        protected Vector3 lastHumanoidPos;
         [HideInInspector]
-        private float lastNeckHeight;
+        protected float lastNeckHeight;
         [HideInInspector]
-        private Vector3 lastHeadPosition;
+        protected Vector3 lastHeadPosition;
         [HideInInspector]
-        private Quaternion lastHeadRotation;
+        protected Quaternion lastHeadRotation;
         [HideInInspector]
-        private float lastHeadDirection;
+        protected float lastHeadDirection;
 
         public event OnNewNeckHeight OnNewNeckHeightEvent;
         public delegate void OnNewNeckHeight(float neckHeight);
@@ -2308,7 +2308,7 @@ namespace Passer.Humanoid {
         #endregion
 
         [HideInInspector]
-        private float lastTime;
+        protected float lastTime;
 
         protected virtual void CalculateVelocityAcceleration() {
             if (lastTime > 0) {