College of Massage Therapists of British Columbia (CMTBC) Practice Exam

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What is the normal ROM for pronation at the elbow?

75-80 degrees
20-30 degrees
30-50 degrees
0-10 degrees

The correct answer is: 75-80 degrees

The normal range of motion (ROM) for pronation at the elbow is indeed in the range of 75-80 degrees. Pronation refers to the inward rotation of the forearm, allowing the palm to face downward or backward when the arm is extended. This motion primarily involves the radius rotating around the ulna, which is essential for various functional activities, such as turning a doorknob, using tools, or typing. Understanding the typical ROM values helps in assessing joint function and identifying any abnormalities or limitations in movement. If the pronation ROM is significantly less than 75-80 degrees, it could indicate an issue such as joint dysfunction, muscle tightness, or a previous injury. Maintaining a healthy range of motion is crucial for performing day-to-day activities effectively.