When teaching the Reformer Long Box Swan, what specific action of the rhomboids and middle trapezius ensures proper scapular depression and adduction, preventing excessive shrugging?

When performing the Reformer Long Box Swan, the rhomboids (major and minor) and middle trapezius work in concert to ensure proper scapular depression and adduction, actively preventing excessive shrugging. These actions are crucial for maintaining shoulder stability and optimal movement mechanics. The specific actions are as follows: Scapular Adduction (Retraction): Both the rhomboids and the middle trapezius share the primary function of scapular adduction. This action involves pulling the shoulder blades directly inward, closer to the spine. This draws the shoulder blades together, providing medial stability against the rib cage and counteracting any tendency for them to wing out or prot....