Passive range of motion exercises primarily help to:

Passive range of motion exercises are specifically designed to maintain or improve the flexibility of the joints and help prevent contractures. Contractures occur when muscle fibers shorten and tighten, leading to a reduction in joint movement and flexibility. By performing passive range of motion exercises, a caregiver or therapist moves the patient's limbs through their full range of motion without the patient exerting any effort. This movement helps keep the joints viable and prevents stiffness and tightness, which can develop from immobility or limited movement.

While passive range of motion might contribute indirectly to other aspects of patient care, such as circulation or minor improvements in respiratory function, its primary focus is on maintaining joint health and preventing the development of contractures. This is particularly important for patients who are bedridden or have limited ability to move themselves, as they are at greater risk for these types of complications.