Question

which of the following is consistent with a sacroiliac extension restriction?
rrroa or rrloa
psis less prominent
crrloa or crrroa
decreased lordosis

Explanation:

Sacroiliac extension restriction is associated with restricted posterior movement of the innominate relative to the sacrum. RRROA (Restricted Retrograde Rotation of the Innominate on the Affected side) and RRLOA (Restricted Retrograde Longitudinal Axis Rotation) are patterns that align with this limitation, as they involve reduced ability of the pelvic bone to extend/rotate posteriorly at the sacroiliac joint. The other options do not match: a less prominent PSIS is linked to anterior dysfunction, CRRLOA/CRRROA are compensatory or opposite patterns, and decreased lordosis is a spinal, not direct sacroiliac extension restriction, finding.

Answer:

RRROA or RRLOA