Which of the following exercises from Reformer 3 focuses on scapular stability?

The exercise that focuses on scapular stability is the Control Front Facing Carriage. This exercise emphasizes maintaining the proper alignment and stability of the shoulder blades while performing movements. Scapular stability is essential in many physical activities, and this particular exercise encourages the engagement of the muscles that support the scapula, allowing for better control and function of the upper body.

In the Control Front Facing Carriage, practitioners often work on stabilizing the shoulders while managing the movement of the carriage, thereby reinforcing the connection between the shoulder girdle and the entire torso. This helps in improving posture, reducing the risk of injury, and enhancing overall upper body strength and coordination.

Other exercises listed, such as Hamstring curls or Footwork on the reformer, primarily target the lower body's muscles, and while they may have some impact on overall body mechanics, they do not specifically prioritize scapular stability as central to their execution. The Long Box Swan does involve some upper body engagement, but the focus is not primarily on scapular stability alone when compared to the targeted efforts of the Control Front Facing Carriage.