week 8 Roll-Gliding

šJoint roll-gliding

šIn a healthy joint, functional movement (bone rotation) produces joint roll-gliding.

šRoll-gliding is a combination of rolling and gliding movement which takes place between two joint surfaces

  (in the spine, between two adjacent vertebrae in a mobile segment).

šRelatively more gliding is present when joint surfaces are more congruent (flat or curved), and

šmore rolling occurs when joint surfaces are less congruent.