One of my criteria for a joint "passing" a mobility test is threat free passive end range overpressure. While neurodynamics testing is more than just "joint" testing, a patient should not feel pain (some paraesthesia is most likely normal).
The physio in the video is a dancer and her partner was having difficulty with no perception of barrier (to the clinician) or stretch (from the patient). In order for the patient to feel even the slightest perception of stretch, I suggested sidebending her head away to end range, which also required contralateral scapula depression.
Remember, with neurodynamic testing, a positive test is a different perception and/or amount of threat free mobility on the involved side versus the uninvolved. You are lucky to reproduce symptoms, but it does not always happen.
A patient should be able to rapidly regain threat free end range in any neurodynamic test if they have full passive end range in each joint separately before you load the neurodynamic pattern.
