Which of the following statements is true regarding passive range of motion exercises?

Passive range of motion exercises involve the therapist moving the patient's joints through their range of motion without any effort required from the patient. This type of exercise is particularly beneficial for patients who may not be able to perform movements on their own due to injury, surgery, or chronic conditions. The therapist's active involvement is essential, as they ensure that the movements are done safely and correctly, which helps in preventing complications such as contractures and stiffness and in maintaining joint mobility.

The other options do not align with the fundamental principles of passive range of motion exercises. For instance, while the frequency of exercises can vary based on individual needs, restricting them to once a day is not universally applicable; some patients may benefit from more frequent sessions. Engaging actively during passive exercises is also contradictory, as the essence of passive range of motion is that the patient does not exert effort. Additionally, while passive range of motion exercises are beneficial for many patients, it does not mean they are necessary for every single patient in every situation, thereby making this option less accurate.