What does pronation involve in terms of joint motion?

Pronation is a complex motion primarily involving the subtalar and midtarsal joints of the foot, as well as contributing motion at the knee and hip joints. When considering pronation, it is essential to understand that this motion encompasses a combination of movements that typically occur in three different joints simultaneously.

Specifically, when the foot pronates, it undergoes a series of movements that include eversion (the foot rolling outward), dorsiflexion (the foot moving upward), and abduction (the foot moving away from the midline). Collectively, these motions take place across multiple joints, illustrating the integrated way in which the body's mechanics function during activities like walking or running.

This multifaceted action emphasizes the need for orthotic fitters to understand the physiological implications of pronation, as it affects not only the foot but can also influence alignment and function all the way up the kinetic chain. Understanding this will aid in providing appropriate interventions, whether through orthotic devices or other means, to address issues associated with excessive or inadequate pronation.