Comprehensive Osteopathic Medical Licensing Examination (COMLEX USA) Practice

Which type of motion testing assesses the quantity or quality of movement performed by the patient?

1. Active motion testing

2. Passive motion testing

3. Static motion testing

4. Comparative motion testing

The correct answer is: Active motion testing

Active motion testing assesses the quantity or quality of movement performed by the patient because it involves the patient engaging in movements that they initiate themselves, allowing for a direct evaluation of their range of motion and functional abilities. This method provides valuable insights into the patient's voluntary control over their movements, strength, and coordination. Through active motion testing, healthcare professionals can observe how well patients can perform certain movements without assistance, which can help identify any limitations or pain during the motion. This is crucial in diagnosing musculoskeletal issues as it reflects the functional capacity of the patient's muscles and joints in dynamic situations. In contrast, the other methods involve different elements. Passive motion testing, for instance, involves the examiner moving the patient's joint without any effort from the patient, which can show potential restrictions but does not evaluate the patient's own capabilities. Static motion testing generally assesses the position of a body part at rest, rather than during movement, and comparative motion testing typically involves evaluating movements across different joints or body parts, rather than focusing solely on the patient's voluntary movements.