Which grade mobilization uses a small movement to increase tissue mobility?

• A. Grade I
• B. Grade II
• C. Grade III
• D. Grade IV

Answer: (D)

Understanding graded mobilizations and how they differ in movement size and where in the range they are applied is key. The technique that uses a small movement at the end of the available range is specifically aimed at increasing tissue mobility. By applying a tiny, end-range motion, it gently loads the joint capsule and surrounding tissues just enough to improve sliding and tissue compliance without provoking guarding or pain. This targeted end-range, small-amplitude approach is designed to break up stiffness and adhesions so the joint can move more freely.

In contrast, a small movement at the very start of the range is typically used to reduce pain and muscle guarding rather than to enhance mobility. A large-amplitude movement within mid-range emphasizes stretching tissues in the middle of motion, not focused specifically at the end-range mobility. A large-amplitude end-range movement stretches tissues more but isn’t the small, end-range mobilization aimed at improving mobility. A high-velocity thrust at end range is a different maneuver meant for a quick joint impulse rather than gradual tissue mobilization.