ANSWERS 2026/2027
what is typical SIJ pain?
- usually unilateral
- below L5
- between posterior iliac crest and gluteal fold
- may radiate to posterior thigh but rarely past the knee
what are aggravating activities for the SIJ?
- sit to stand
- rolling in bed
- unilateral stance
- stairs
does SIJ follow a dermatomal pattern?
no
what is the order of force in the LE?
spine > sacrum > pelvic ring > hips > LE
what is form closure (passive stability)?
- shape of sacrum and ilium
- joint surface ridges and grooves
- friction between articular surfaces
- ligament support
- no muscle activity required
what is force closure (dynamic stability)?