The range of motion exercise treatment is recommended for individuals who have struggled with difficulty or loss of movement due to degenerative diseases or conditions affecting the joints, ligaments, and tendons. The range of motion exercises is usually a part of a comprehensive treatment plan. The exercise routine helps in maintaining normal joint movement and increased muscle flexibility and strength. The therapy reduces the pressure on joints by weight management and keeps bones and cartilage healthy. Several instruments are employed to measure the range of motion of a join. The goniometer, measures the angle at a joint while an inclinometer measures the joint angle at extension and flexion. There are three primary types of exercises that can be broadly categorized as a range of motion exercises. Passive range of motion exercises is recommended for patients with total loss of movement of a joint. The condition is precipitated by irreparable damage resulting from disease, paralysis or injury. In these cases, the patient is unable to move the limb on his own. The physiotherapist stretches the soft tissues of the patient without moving the limb to prevent stiffness. The active assistive range of motion exercises is prescribed to patients who are experiencing a moderate level of difficulty in movement. The exercises are performed with mechanical or manual assistance under the guidance of a trained physiotherapist. The exercise is recommended to maintain the ideal level of flexibility and motion.