National Physical Therapy Examination (NPTE) Practice Exam 2026 – The All-in-One Guide to Exam Success!

Question: 1 / 555

What is the primary function of the tibialis posterior muscle in a patient with spastic cerebral palsy?

To allow foot pronation

To support knee flexion

To assist with ankle dorsiflexion

To maintain foot supination

The primary function of the tibialis posterior muscle is to maintain foot supination. This muscle plays a crucial role in stabilizing the medial longitudinal arch of the foot and is mainly responsible for plantarflexion and inversion of the foot. In patients with spastic cerebral palsy, where muscle tone is often increased, the role of the tibialis posterior becomes significant in ensuring proper alignment and stability of the foot during activities such as walking or standing.

By maintaining foot supination, the tibialis posterior helps in the functionality of the foot's structure and helps prevent excessive pronation, which can lead to further complications in gait and balance in these patients. Managing foot position is critical in spastic cerebral palsy to minimize secondary complications such as foot deformities, so understanding the function of the tibialis posterior is important for effective treatment strategies.

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