Which type of range of motion involves external assistance, such as a therapist?

The correct answer is passive range of motion. This type of motion refers to movements applied to a joint or body segment without the individual actively participating. In passive range of motion, an external force, such as that provided by a therapist, a machine, or gravity, assists in moving the limb or joint through its available motion.

The importance of passive range of motion lies in its ability to maintain joint flexibility, prevent stiffness, and improve circulation in individuals who may be unable to independently move due to injury, surgery, or other medical conditions. In various therapeutic settings, particularly in rehabilitation, therapists use passive range of motion exercises to enhance mobility, alleviate joint pain, and prepare patients for active participation in rehabilitation programs.

Active range of motion, on the other hand, involves the individual moving their limbs or joints independently without assistance. Resistive range of motion involves applying resistance against the movement to strengthen muscles, while stabilizing range of motion focuses on maintaining control of a joint or body part without allowing it to move excessively. Each of these has distinct purposes, emphasizing the unique role that passive range of motion plays in therapy and rehabilitation.