Amplitude is how large an oscillation or movement is; in 📝Articular Mobility this work stays small.
A large swing is not more helpful. Small amplitude lets the joint stay inside comfort and keeps the person from bracing. It is not a grade of joint mobilization and not a claim that a tiny movement relocates anything. Growing the movement because the person asked is still inside consent; growing it to get more done is the miss.
Clients feel a rock, not a throw. Dizziness, pinch, or a wish to brace is a stop.