What is the normative ROM for hip internal rotation in degrees?

• A. 0-45 degrees
• B. 0-20 degrees
• C. 0-60 degrees
• D. 0-35 degrees

Answer: (A)

Normal hip internal rotation is the inward turning of the thigh when the hip is placed in a functional position. In practice, with the hip flexed to about 90 degrees (sitting), the typical end range for internal rotation is up to around 45 degrees. That means a normal ROM commonly described as 0 to 45 degrees captures the usual limit for healthy hips. Values far below this, like 0–20 or 0–35 degrees, describe a more restricted motion, while extending up to 60 degrees is beyond the typical normative ceiling for most people. So, 0–45 degrees best represents normal hip internal rotation.