Movement Analysis now calculates two metrics: User Jerk and User Resistance. I have redefined these to be something that I think works better in practice, and I've reset the thresholds. (The thresholds are now public properties that we can reset without having to rebuild this project.) I've written comments in MovementAnalysis.cs explaining the new metrics in a little more detail.
I'm proposing that we use these two metrics and their names. User Jerk Detection in place of Spasm Detection, and User Resistance Detection has the same name but is calculated differently.