Which type of flexibility assesses the degree to which a joint can be moved passively?

The correct answer is PROM, which stands for Passive Range of Motion. This type of flexibility specifically measures how far a joint can be moved when an external force is applied to it, without active involvement from the muscles surrounding the joint. During PROM assessments, a clinician or therapist typically moves the limb or joint to evaluate its flexibility and range of motion.

Understanding PROM is crucial in athletic training as it helps in identifying any restrictions in joint movement that may be due to tightness in the surrounding muscles or connective tissues. It is particularly useful in rehabilitation settings to assess a patient’s recovery from injury and determine appropriate interventions.

In contrast, the other options such as Active Range of Motion (AROM), Dynamic flexibility, and Active flexibility focus on movements initiated by the individual, which do not evaluate the extent of passive movement achieved by an external force. Therefore, PROM distinctly characterizes the assessment of joint flexibility through passive movement, making it the accurate choice for this question.