What movement is most likely to be limited after a supraspinatus injury?

What movement is most likely to be limited after a supraspinatus injury?

• A. Internal rotation
• B. Extension
• C. Abduction
• D. Adduction

Answer: (C)

The movement that is most likely to be limited after a supraspinatus injury is abduction. The supraspinatus is one of the four rotator cuff muscles, and its primary function is to initiate the abduction of the arm, particularly during the first 15 degrees of motion. When this muscle is injured, the body's ability to lift the arm away from the body is significantly compromised, leading to difficulty and pain during activities that require shoulder abduction. Understanding the role of the supraspinatus is essential in recognizing why abduction is affected. This muscle stabilizes the shoulder joint while working with other rotator cuff muscles to allow for smooth and coordinated arm movements. An injury to this area can result in weakness or pain, making abduction particularly challenging.

The movement that is most likely to be limited after a supraspinatus injury is abduction. The supraspinatus is one of the four rotator cuff muscles, and its primary function is to initiate the abduction of the arm, particularly during the first 15 degrees of motion. When this muscle is injured, the body's ability to lift the arm away from the body is significantly compromised, leading to difficulty and pain during activities that require shoulder abduction.

Understanding the role of the supraspinatus is essential in recognizing why abduction is affected. This muscle stabilizes the shoulder joint while working with other rotator cuff muscles to allow for smooth and coordinated arm movements. An injury to this area can result in weakness or pain, making abduction particularly challenging.