What type of rotation is NOT one of the side arms preps?

In the context of side arms preps in Stott Pilates, rotation refers specifically to the movement of the arm in relation to the shoulder joint, and the typical rotations involved are internal and external rotation as well as abduction. Internal rotation involves turning the arm inward towards the body, while external rotation involves turning it outward away from the body. Abduction refers to the movement of the arm away from the midline of the body.

When discussing the side arms preps, extension is not characterized as a type of rotation. Rather, extension generally refers to straightening the arm at the elbow or moving it in a backward direction while keeping the arm straight. Therefore, it does not fit into the classification of rotational movements. This distinction highlights that internal, external rotation, and abduction are the movements emphasized within the side arms preps, while extension is a different movement pattern altogether.