What instrument is used to measure and document range of motion (ROM)?

The goniometer is an instrument specifically designed to measure and document the range of motion (ROM) in joints. It typically has two arms that can pivot around a central axis, allowing it to align with the body parts being measured. When the goniometer is placed on the joint of interest, the angle between the two arms indicates the degree of motion. This is crucial in physical therapy for assessing a patient's current flexibility and planning appropriate interventions to improve mobility. The precise readings provided by a goniometer make it an essential tool in both clinical settings and research, ensuring that therapists can track progress and tailor rehabilitation programs effectively.