What does "overpronation" mean in relation to foot biomechanics?

Overpronation refers to a condition in foot biomechanics where there is excessive inward rolling of the foot during activities such as walking or running. The foot naturally pronates to absorb shock and adapt to the ground, but when this inward motion is exaggerated, it can lead to altered biomechanics, resulting in potential issues such as discomfort or injury in the feet, knees, and other related areas.

Understanding overpronation is essential for orthotic fitters because it helps in identifying the appropriate interventions needed for individuals who exhibit this biomechanical pattern. The determination of overpronation is particularly relevant in selecting footwear and orthotic devices, which are designed to provide adequate support and control the degree of motion to prevent related complications. This is crucial for athletes and those with active lifestyles, as improper alignment can impact performance and overall comfort.

The other options describe different conditions or levels of motion that do not accurately capture the physiological mechanics of overpronation.