What action involves adducting, extending, and internally rotating the arm at the shoulder?

The action described involves bringing the arm closer to the body (adduction), moving it backward (extension), and rotating the arm towards the midline of the body (internal rotation).

Adduction at the shoulder occurs when the arm is moved from an outstretched position back toward the side of the torso. When the arm extends, it moves backward in the sagittal plane, often used in actions such as pulling or reaching behind. Internal rotation refers to the inward turning of the arm at the shoulder, which facilitates movements like reaching across the body or when the arm is in a position to perform certain lifting or pulling actions.

This combination of adduction, extension, and internal rotation is commonly utilized in various activities and exercises, emphasizing the coordination and function of the shoulder muscles, particularly the latissimus dorsi, teres major, and pectoralis major, as they contribute to these specific movements. Understanding this movement pattern can enhance both functional movement analysis and rehabilitation strategies in kinesiology.