Thomas test purpose?

Thomas test purpose?

• A. Measures knee extensor strength.
• B. Evaluates lumbar lordosis.
• C. Measures ankle plantarflexion.
• D. Measures flexibility of hip flexors, especially iliopsoas and rectus femoris, to identify contracture or tightness that may limit hip extension.

Answer: (D)

The Thomas test is used to assess the length and flexibility of the hip flexors, especially the iliopsoas and rectus femoris. In the test, a person lies on their back and brings one knee to the chest while keeping the other leg flat. If the opposite leg stays flat with the thigh fully on the table and the knee can extend, the hip flexors are considered flexible. If the opposite leg lifts off the table or the knee cannot fully straighten, this indicates tightness or a contracture in the hip flexors, which can limit hip extension. This is why the option describing hip flexor flexibility and potential contracture that could limit hip extension is the correct purpose. The test isn’t about knee extensor strength, lumbar curve, or ankle movement, which is why the other options don’t fit.

The Thomas test is used to assess the length and flexibility of the hip flexors, especially the iliopsoas and rectus femoris. In the test, a person lies on their back and brings one knee to the chest while keeping the other leg flat. If the opposite leg stays flat with the thigh fully on the table and the knee can extend, the hip flexors are considered flexible. If the opposite leg lifts off the table or the knee cannot fully straighten, this indicates tightness or a contracture in the hip flexors, which can limit hip extension. This is why the option describing hip flexor flexibility and potential contracture that could limit hip extension is the correct purpose. The test isn’t about knee extensor strength, lumbar curve, or ankle movement, which is why the other options don’t fit.