A modified internal rotation stretching technique for overhand and throwing athletes

Area of Science:

• Sports Medicine
• Orthopedic Surgery
• Biomechanics

Background:

• Throwing athletes frequently develop shoulder overuse injuries despite standard rehabilitation.
• The pitching motion inherently leads to increased external and limited internal shoulder rotation.
• Existing shoulder stretching methods may not fully address glenohumeral joint limitations.

Purpose of the Study:

• To present a modified posterior shoulder stretching technique.
• To enhance the effectiveness of internal rotation stretching for the glenohumeral joint.
• To reduce overuse injuries in throwing athletes.

Main Methods:

• A prone, modified posterior shoulder stretch with specific arm and shoulder positioning.
• Manual scapular stabilization against the thoracic wall.
• Isolation and stretching of the infraspinatus muscle and posterior joint capsule.

Main Results:

• The technique effectively isolates and stretches the posterior shoulder structures.
• Scapular stabilization directs internal rotation movement to the glenohumeral joint.
• Improved efficacy of internal rotation stretching for the glenohumeral joint.

Conclusions:

• This modified stretching technique enhances glenohumeral joint internal rotation.
• It offers a more effective component for traditional shoulder stretching programs.
• It should be integrated into training and rehabilitation for high-performance shoulder athletes.