The vast majority of joints in the human body are rotational structures. They are made of convex and concave elements. Rotational joints can only produce movements in arcs and curves. Rotation by definition, is movement around and axis or a center. We are “wired” to perceive rotations, spins and oscillations by sensing the center of rotation. We will explore how to map and perceive the movement of joints from the axis of rotation instead of joint surfaces, focusing on the shoulder, hip, atlantooccipital and wrist joints.