What is the maximum range of external rotation at the glenohumeral joint according to CPR?

The maximum range of external rotation at the glenohumeral joint is standardized in the clinical practice guidelines, and the correct value is 90 degrees. This measurement is important for clinical assessments and rehabilitation protocols, as it helps to determine the functional capacity of the shoulder joint and can indicate potential limitations in mobility.

External rotation at the glenohumeral joint is crucial for various overhead activities and movements, making knowing the typical range essential for healthcare professionals. The range of 90 degrees allows practitioners to objectively assess shoulder function and implement appropriate treatment plans for patients with shoulder dysfunction or after surgical interventions.

The other options suggest ranges that are either below or do not encompass the accepted standard. These values may not reflect the full capabilities of a healthy shoulder joint or could represent ranges found under specific circumstances, such as particular injuries or conditions, but they do not align with the established maximum range recognized in clinical guidelines.