Range of Motion: Supine Hip Internal Rotation

Hip Internal Rotation range of motion can be tested with an inclinometer using the following steps:

1. Have the client adopt a supine position lying down on a massage table or mat. Ask the client to bring one of their hips up to 90 degrees.
2. While ensuring the client keeps their knee directly over the center of their hip joint, have the client rotate their foot away from their body. Doing this will allow the client’s hip to internally rotate. 
3. As this is a rotational assessment, the Measurz app will utilise the transverse plane feature of the inclinometer. Thus, the starting position of the smart device is critical. The smart device should be resting at 0 degrees, ideally on top of the midway point of the client’s tibia.
4. Once the client has achieved their maximal level of hip internal rotation, press the pause/play, followed by the save buttons to view the client’s results.
5. This test can also be performed passively, by assisting the client to achieve extra range of motion. Should this be selected, please record this in the notes section and use it consistently.

The normal range of Hip Internal Rotation range of motion can vary depending on a number of factors, including age, sex, and activity level. However, according to the American Academy of Orthopaedic Surgeons, the average range of motion for Hip Internal Rotation in adults is approximately 35-40 degrees.

References:

1. American Academy of Orthopaedic Surgeons. (n.d.). Hip pain and mobility deficits: Hip range of motion. OrthoInfo. Retrieved from https://orthoinfo.aaos.org/en/recovery/hip-pain-and-mobility-deficits-hip-range-of-motion/
2. Kendall, F. P., McCreary, E. K., & Provance, P. G. (1993). Muscles: Testing and function with posture and pain (4th ed.). Baltimore, MD: Williams & Wilkins.
3. Magee, D. J. (2014). Orthopedic physical assessment (6th ed.). St. Louis, MO: Elsevier.
4. Neumann, D. A. (2010). Kinesiology of the hip: A focus on muscular actions. Journal of Orthopaedic & Sports Physical Therapy, 40(2), 82-94. doi: 10.2519/jospt.2010.3025