What does the term range of motion (ROM) refer to in physical assessments?

The term range of motion (ROM) specifically refers to the total angle through which a joint can move. This concept is crucial in physical assessments as it evaluates the flexibility, mobility, and functional capability of joints. Understanding the ROM allows clinicians to identify any limitations or restrictions in movement that may be due to injuries, conditions like arthritis, or post-surgical rehabilitation.

Measuring the angle of movement at a joint, which is often expressed in degrees, helps to inform treatment plans and track progress in rehabilitation. A full and healthy ROM is essential for performing daily activities and maintaining overall physical function, and any deficits can signal potential underlying issues that warrant further investigation or intervention.

The other options focus on different aspects of physical health: the volume of air relates to respiratory function, the strength of a muscle group pertains to muscle power, and the response time of a reflex concerns neurological pathways. Each of these is important but distinct from the definition of range of motion.