1. Downslips occur frequently but self-correct during the gait cycle.  False,
this is just a belief articulated a very long time ago. The orientation of the
SIJ is such that forces going superiorly through the hip joint do n
 
 
 
 
 
 
After the seminar we filmed a PT who has a pathological fusion of one sacroiliac joints. I was amazed to see how significantly this restricted pelvic side-glide tested passively. The SIJ might not move much but lose that micromotion and some macromotions get effected. There are 2 videos, part 1, 2. 
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Part 1.
http://www.youtube.com/watch?v=xc1NU7XnmwE
Part 2.
http://www.youtube.com/watch?v=tKYjwilI7Dk