Physical Therapy Assistant Practice Exam

In a non-weight bearing foot, which motions combine to create pronation?

1. Adduction and plantarflexion

2. Abduction, dorsiflexion, and eversion

3. Internal rotation and inversion

4. Dorsiflexion and inversion

The correct answer is: Abduction, dorsiflexion, and eversion

Pronation of the foot in a non-weight bearing condition is characterized by a combination of motions that allows for the foot to adapt and function effectively. The correct answer includes abduction, dorsiflexion, and eversion. Abduction refers to the movement of the foot away from the midline of the body, which contributes to the outward rolling of the foot. Dorsiflexion allows the toes to move upwards towards the shin, facilitating the rotational aspect of pronation. Eversion involves the movement of the sole of the foot outward, further aiding in the outward rolling motion that characterizes pronation. This combination effectively balances the movements of the foot, allowing it to effectively manage shock absorption and provide a stable base for subsequent movements, crucial in the biomechanics of walking and running. Understanding this movement pattern is essential for assessing and planning interventions in physical therapy, especially for conditions affecting the lower extremities.