Systems and methods are disclosed for applying a controllable and predictable muscle oscillation to a portion of a body such as a character in a predetermined and intuitive way. Positions of separate muscle locations are analyzed throughout a timeline. A third derivative with respect to time of the positions of the separate muscles is calculated to measure a change of acceleration for a particular point of interest. The change in the acceleration gives positive or negative changes in the applied forces. The direction and magnitude of the applied forces is passed onto a part of a solution that creates a procedural oscillation based on the magnitude and the direction of the applied forces in the muscle space.