A strong contraction of the biceps with the elbow flexed and shoulder abducted to 90$\degree$, promotes _________ and prevents _________ translation of the glenohumeral joint.

Question

Quizplus · Accepted Answer

A strong contraction of the biceps with the elbow flexed and shoulder abducted to 90 degrees promotes compression of the glenohumeral joint, which helps to prevent superior translation of the humeral head (preventing shoulder impingement). This contraction of the biceps is important in maintaining stability of the shoulder joint during overhead movements, such as throwing a ball or lifting weights.

A Strong Contraction of the Biceps with the Elbow Flexed °\degree°

A Strong Contraction of the Biceps with the Elbow Flexed $\degree$