Grade I joint mobilization is used for which combination of movement size and therapeutic effect?

• A. Small, pain
• B. Large, pain
• C. Large, increase tissue mobility
• D. Small, increase tissue mobility

Answer: (A)

Grade I joint mobilization uses a small-amplitude movement applied at the very beginning of the joint’s range of motion. This gentle technique is used when pain is the primary issue, especially in acute or inflamed conditions, because the light, early-range movement helps modulate pain signals and reduce muscle guarding without stressing the joint end range. It works to relieve pain rather than to increase tissue mobility. Larger amplitudes or movements that push into mid- or end-range are used in other grades to address stiffness and mobility, not the acute pain scenario. So the best fit is a small movement aimed at reducing pain.