Execution:
- Have the patient in supine lying position
- Depress the patient’s shoulder with your hip, abduct it to 10°, and flex the elbow to 90°
- Extend the wrist and fingers(including the thumb) and supinate the forearm
- Slowly extend the elbow until the patient complains of familiar symptoms
- Confirm that the findings are due to nerve stretch by flexing the elbow a little to create slack and ask the patient to laterally flex their neck to the contralateral side, which should increase the symptoms again
Positive Outcome: The patient’s familiar arm symptoms like shooting pain or paresthesia are reproduced. Some authors score the test negative in case of a marked decrease of mobility (>10°)
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Apelby-Albrecht et al. (2013): vs. MRI + medical exam |
Inter-rater ĸ=0.36 | 66 | 75 | 2.63 | 0.46 |
| Schmid et al. (2009) | Inter-rater ĸ=0.46 | NA | NA | NA | NA |
| Grondin et al. (2021) | NA | 70.37 | 72.41 | 2.55 | 0.41 |
