Question

Which muscles, part of the rotator cuff, are more likely to be inhibited in the early stages of shoulder dysfunction, potentially leading to scapular dyskinesis?

Option 1: Subscapularis and Teres Minor
Option 2: Supraspinatus and Teres Minor
Option 3: Infraspinatus and Subscapularis
Option 4: Supraspinatus and Infraspinatus

Answer 1

In early shoulder dysfunction leading to scapular dyskinesis, the Supraspinatus and Infraspinatus muscles of the rotator cuff are more likely to be inhibited. These muscles stabilize the shoulder and are crucial for arm abduction and lateral rotation. The correct option is Option 2: Supraspinatus and Teres Minor

Step-by-step explanation:

The muscles that are most likely to be inhibited in the early stages of shoulder dysfunction, potentially leading to scapular dyskinesis, are Option 2: Supraspinatus and Infraspinatus. These muscles, along with the subscapularis and teres minor, form the rotator cuff, which is crucial for stabilizing the shoulder joint.

The supraspinatus muscle primarily helps in the abduction of the arm, while the infraspinatus assists in the lateral rotation of the arm. In shoulder dysfunctions common among athletes who perform overhead actions, such as baseball pitchers, these muscles can become compromised, resulting in a loss of stability and movement efficiency.

The rotator cuff's critical role includes holding the head of the humerus in the glenoid cavity, ensuring smooth shoulder movement, and serving as a dynamic ligaments. The correct option is Option 2: Supraspinatus and Teres Minor