Hi neurospast, thank you for your answer.

I´m much better than the first time I went to the chiropractor (Sep 2012), at the beginning I had to go twice a week and now just every 3 weeks, but it is true that the pelvis still moves out a bit once the chiropractor puts it in place.
Yes, I have done a lot of Pilates and Yoga during the last 18 months, otherwise I would have had a lot of pain during these months.

My left buttock (where the pelvis is rotated) is more flat than the right one (don´t know why), even after all these exercises. The left hamstring is really tight, probably because it has to work more to compensate other muscles. The left hip flexor is also much tighter than the right one. By the way, between my L5 and S1 there isn't a thick disc (sacralization).

You are right, I find these tests a bit difficult to do and interpret them by myself.

Thanks,

Alberto