What does inversion refer to in terms of foot movement?

Inversion in terms of foot movement specifically refers to the action of lifting the medial (inner) border of the foot towards the midline of the body. This movement causes the sole of the foot to turn inward. It is an essential movement that contributes to the stability and function of the foot and plays a key role in activities such as walking and running.

When the foot inverts, the lateral side (outer edge) remains down, while the inside edge elevates, adjusting the foot's orientation in relation to terrain and maintaining balance. This movement can be crucial in activities that require quick changes in direction or stabilization on uneven surfaces.

Understanding inversion is important for sports massage practitioners, as it can help identify potential muscular imbalances or dysfunctions that could lead to injuries, particularly in athletes who engage in activities that stress the foot and ankle.