Is there a way to tell if my lack of hip mobility is structural?
I (27 M) have incredibly tight hips. Internal rotation is minimal, and whenever I sit down and rotate my legs inward, I feel a tightness unlike what I feel when stretching my hamstrings. It's not painful exactly, just uncomfortable. It makes it so that I need to move VERY slowly when coming out of horse stance or a frog position. I'm working on incorporating some more dynamic movements to try and strengthen things (standing pancakes for reps, cossack squats), but I'm also wondering if there could be a genetic limitation. When I do hip circles (like the motion to set up a crescent kick) I can feel my hip click when my knee comes in from the outside of the rotation, but I don't know if that's an indicator of anything.
I don't think my hip flexors are weak: I can do bulgarian split squats and weighted pistol squats without much issue. A physio I went to a couple of years ago said my hip flexibiility was acceptable, but didn't comment on any possible structural limitations.
Is there any way I can test this on my own?