Hips shift and rotate with the trunk
Pelvis lifts off the mat and moves; the rotation is not isolated to the spine.
Overactive muscles
TFLQuadratus lumborum
Corrective work
Foam RollTFL↗StretchQL side-bend stretch↗Pelvis lifts off the mat and moves; the rotation is not isolated to the spine.
The reach replaces rotation; the obliques miss the rotational stimulus.