Range of motion (ROM) exercises are performed by a therapist to improve joint function and mobility. There are three main types of ROM exercises: passive, active-assisted, and active. Passive ROM involves external movement of the joint without muscle contraction, active-assisted uses some voluntary muscle effort with assistance, and active ROM relies solely on the patient's own muscle effort. Relaxed passive movement specifically aims to maintain unrestricted ROM, reduce pain and swelling, and improve circulation. It involves slow, rhythmic movements through the full ROM and is used to evaluate joints and assist with muscle re-education. Contraindications include fever, inflammation, recent injury, and abnormal vital signs.