Ok, just seen someone else this morning.
He got me doing one leg tests:
Standing on one leg - I could do without problem
Jumping off a step and landing on one leg:
I did ok on my "good side" (left)
on my "bad side" (right) my left hip drops and I lean over to the right to balance.
This feels like what I do when I run.
He advised that I do:
hip hikes, focussing on endurance by holding at the top
jump forward onto one leg, trying to keep pelvis level
stretch psoas
He also did some dry needling in my glutes.
Back
When I had my back problems, I did Mckenzie exercises which seemed to help.
The MRI said (2010)
At L4/5, broad-based central protrusion is noted indenting the anterior theca. No compression to transiting or exiting nerve roots.
At L5/S1, minor central bulge is noted with annular tear, No canal/foramina narrowing.