How do PROM and AROM differ?

How do PROM and AROM differ?

• A. PROM is movement produced by the patient; AROM is movement assisted by a clinician.
• B. PROM is movement performed by a clinician without patient muscle activation; AROM is movement produced by the patient using their own muscles.
• C. PROM uses electrical stimulation; AROM uses free movement.
• D. PROM and AROM involve patient and clinician equally and are interchangeable.

Answer: (B)

Passive range of motion versus active range of motion describes who is producing the movement. In passive range of motion, the joint is moved through its full range by the clinician or a device, with the patient not contracting the moving muscles. In active range of motion, the patient uses their own muscles to move the joint through the range. This distinction matters because PROM is useful for maintaining joint mobility and preventing contractures when a patient cannot actively move, but it does not build muscle strength. AROM, on the other hand, requires the patient’s muscle activation, which can help maintain or improve strength and motor control, provided there is sufficient muscle function. The other statements aren’t accurate: PROM is not movement produced by the patient, and PROM is not defined by electrical stimulation. PROM and AROM are not interchangeable or equally involving both parties; they describe different modes of movement based on who initiates and controls the movement.

Passive range of motion versus active range of motion describes who is producing the movement. In passive range of motion, the joint is moved through its full range by the clinician or a device, with the patient not contracting the moving muscles. In active range of motion, the patient uses their own muscles to move the joint through the range.

This distinction matters because PROM is useful for maintaining joint mobility and preventing contractures when a patient cannot actively move, but it does not build muscle strength. AROM, on the other hand, requires the patient’s muscle activation, which can help maintain or improve strength and motor control, provided there is sufficient muscle function.

The other statements aren’t accurate: PROM is not movement produced by the patient, and PROM is not defined by electrical stimulation. PROM and AROM are not interchangeable or equally involving both parties; they describe different modes of movement based on who initiates and controls the movement.