What is the main aim of performing passive range-of-motion exercises?

The main aim of performing passive range-of-motion exercises is to maintain joint mobility. These exercises involve moving a patient's limbs through their full range of motion without the individual actively participating. This is particularly important for individuals who are unable to move their limbs on their own due to conditions such as paralysis, severe pain, or after surgery.

By incorporating passive range-of-motion exercises, caregivers help prevent stiffness in the joints and maintain flexibility, which is crucial for overall mobility and function, even if the individual does not actively engage their muscles. This practice can also aid in preventing complications such as contractures, where muscles and tendons shorten and become tight, thereby restricting movement.

While the other options describe important health benefits, such as increasing muscle strength, enhancing cardiovascular health, and improving respiratory function, they are not the primary focus of passive range-of-motion exercises. The goal is specifically about maintaining the movement and health of joints to ensure that they remain functional over time.