Shoulder Range of Motion Movements for Examination
For a comprehensive shoulder examination, assess both active and passive range of motion in six primary movements: flexion, abduction, external rotation (in neutral and at 90° abduction), internal rotation (at 90° abduction), extension, and horizontal abduction, with the patient seated and elbow flexed to 90°.
Standard Patient Positioning
The patient should be positioned sitting with:
- 90° flexion of the elbow joint 1
- Hand positioned in supination on top of the patient's thigh
- For dynamic examination, perform active and/or passive external and internal rotation of the humerus over the full range of motion with the elbow maintained at 90° 1
Six Essential Movements to Assess
1. Flexion (Forward Elevation)
- Normal active range: approximately 160-162° in males, 158-159° in females 2, 3
- Decreases with age (approximately 15° from age 20 to 60+) 2
- Measure with arm moving anteriorly in sagittal plane
2. Abduction (Lateral Elevation)
- Normal active range: approximately 150-152° in males, 149-150° in females 2, 3
- Decreases with age (approximately 40° from young to elderly) 3
- Greater in females than males, particularly in younger age groups 2
3. External Rotation in Neutral (ER0)
- Measured with shoulder in adduction, elbow flexed to 90° 4
- Normal active range varies but typically 60-90°
- Approximately 5° greater in the dominant arm 2
- Critical caveat: External rotation ROM increases significantly with shoulder abduction angle 5, so document the abduction position used
4. Internal Rotation at 90° Abduction
- Measured with shoulder at 90° abduction, elbow flexed to 90° 4
- Approximately 5° greater in the non-dominant arm 2
5. External Rotation at 90° Abduction
- Measured with shoulder at 90° abduction, elbow flexed to 90° 4
- Combined with internal rotation to calculate total arc of motion
6. Extension and Horizontal Abduction
- Extension: approximately 5-10° greater in females than males (ages 10-59) 2
- Horizontal abduction: similarly greater in females 2
Key Examination Positions for Specific Structures
When examining for pathology, use these standardized scan positions 1:
- Neutral position: baseline assessment
- Maximal internal rotation: exposes supraspinatus tendon anteriorly
- Raised arm (axillary position): most sensitive for detecting small effusions, though may not be possible in advanced disease
Important Clinical Considerations
Age-Related Changes: Expect progressive decline in ROM with aging. External rotation decreases approximately 10° and flexion decreases approximately 15° from age 30 to 60+ 2.
Sex Differences: Females generally demonstrate 5-10° greater ROM in extension and horizontal abduction 2. Males show slightly greater flexion and abduction in some age groups.
Bilateral Asymmetry: The dominant arm typically shows 5° greater external rotation, while the non-dominant arm shows 5° greater internal rotation 2. The contralateral side may not always be a reliable control 6.
Measurement Pitfall: External rotation ROM varies significantly with shoulder abduction angle 5. Always document whether you're measuring ER in neutral (arm at side) or at 90° abduction, as these are not interchangeable values. Clinicians must use consistent positioning for valid comparison over time.
Active vs. Passive: While passive ROM normative data are well-established, daily function relies on active motion 2. Assess both, as discrepancies between active and passive ROM provide diagnostic information about pain, weakness, or mechanical blocks.