Athletic Training Practice Exam

What describes a D2 pattern of an extremity?

1. External rotation with flexion and abduction to internal rotation with extension and adduction

2. External rotation with flexion and adduction to internal rotation with flexion and abduction

3. External rotation with adduction and flexion to internal rotation with abduction and flexion

4. External rotation with abduction and extension to internal rotation with adduction and flexion

The correct answer is: External rotation with flexion and abduction to internal rotation with extension and adduction

The D2 pattern of an extremity, particularly when discussing the upper body, involves a sequence of movements that transition from external rotation with flexion and abduction to internal rotation with extension and adduction. This pattern can be visualized in functional tasks such as reaching up and across the body, often seen in athletic movements or rehabilitation exercises. In detail, the first part of the pattern—external rotation with flexion and abduction—describes a position where the arm is raised across the body and rotated outward, facilitating activities like throwing or reaching overhead. The transition to internal rotation with extension and adduction indicates the arm moving back down and across the body towards a more neutral position, which is essential for activities such as descending or returning a motion to the starting point. Understanding this pattern is vital for athletic trainers as it relates to muscle recruitment, coordination, and rehabilitation protocols. It effectively illustrates the dynamic and functional ways human limbs can move in various sports and physical activities. The complexity of these movements underlines the importance of the D2 pattern in training and recovery programs.