The Thomas Test

Athletes need full hip flexion. The Thomas test is a simple way to assess if there are limitations in their hip flexion. Unlike some tests, this can be quickly and easily performed by any partner with a basic understanding of the procedure.

What's The Point?

To assess if you have fixed flexion deformity i.e. if your hip cannot be fully extended.

What Do You Need?

  • An assistant
  • A comfortable surface ideally an examination table however, a comfortable non-slip surface such as an exercise mat will also work

How Do You Do The Test?

  • Lie on your back and flex both knees, bringing them up to your chest.
  • The assistant places their hand between your low back and the floor/table
  • With one knee held firmly in position, lower the other leg

What Results You'll See

If any flexion deformity is present, the leg will not be able to rest comfortably on the floor/table.

What's Being Measured Again?

This is a test of fixed flexion deformity.

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