Range of Motion: Hip Modified Thomas Test

range of motion Jun 29, 2023

 Here are the steps for performing the Hip Modified Thomas Test:

  1. Have the client lie on their back with their ischial tuberosities on the long edge of a massage table. 
  2. Once a comfortable position is established, instruct the client to use their hands to pull one knee as close to their chest as possible.
  3. Then, using the Measurz inclinometer, simply place the smart device upright at the midway point of the opposite femur. 
  4. The inclinometer will gather the measurements right away, so from here, simply hit the pause/play, and then the save button to generate and view the client’s results. NB: Aiming for a result of at least 10 degrees of hip extension.

It's important to note that there is a wide range of normal hip extension range of motion, and what is considered "normal" can vary based on age, gender, and other factors. Generally, a range of at least 10 degrees of hip extension is considered normal in adults.



  1. Magee, D. J. (2014). Orthopedic Physical Assessment-E-Book (6th ed.). Elsevier Health Sciences.
  2. Kendall, F. P., McCreary, E. K., Provance, P. G., Rodgers, M. M., & Romani, W. A. (2005). Muscles: Testing and function, with posture and pain. Lippincott Williams & Wilkins.
  3. Neumann, D. A. (2010). Kinesiology of the hip: a focus on muscular actions. Journal of Orthopaedic & Sports Physical Therapy, 40(2), 82-94.

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