"Mobilizations are used to restore joint play that has been lost due to injury or disease. In order for an individual to kick his leg out, there must be sufficient joint play, or freedom for the tibia to move on the femur. Thus, mobilizations are used when range of motion or mobility is lacking. Furthermore, gentle oscillations within the available joint play range is a technique used to decrease pain. Manipulations are quick movements that occur beyond the available joint play range. The purpose of manipulations, or joint thrusts, is to increase the available range if it is not full. Secondly, manipulations are done to break adhesions that disrupt joint movement."
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