Execution:
- Patient is in sitting position
- Ask the patient to take a deep breath and hold the breath while attempting to exhale over a 2 – 3 second period with gradually increasing force
- Some patients might find it easier to blow against the back of their hand or bearing-down as when equalizing ear pressure
Positive Outcome: If the patient’s arm pain or paresthesia is reproduced
| Study |
Reliability |
Sn | Sp | LR+ |
LR- |
| Wainner et al. (2003) |
Inter к= 0.69 |
22 | 94 | 3,5 |
0.83 |
