Hey Sarah,
To add to the general consensus. I have not seen this either. I would agree with Justin about the gait in regards to d/c AD. In the literature I’ve encountered with pts s/p hip labral repair and FAI arthroscopy, the major components for progressing through the protocol phases are pain-free uncompensated gait. I feel like although the surgical intervention is not the same, the same philosophy may be applied. In addition to Justin’s suggestion of videoing the patient, I find that part-task breakdowns of gait are helpful once the patient understands what/why you are working on something, such as hip flexion.
I also wonder about her joint mobility. If she has some posterior capsule tightness and/or anterior capsular hypermobility, she may have increased stress to the (already weak) psoas as it crosses the anterior capsule, similar to patients with hypermobile-FAI leading to increased anterior hip pain. Joint mobs might have an added effect of some increased neural input to the psoas…
Keep us posted!