Underpronation vs. supination: What is the difference?

Supination is also known as underpronation. Your foot should roll inward a little (pronate) in a typical stride so that your weight is on the ball of your foot. The big toe is then pushed off. When you supinate, the majority of your weight is distributed to the outside of your foot, and you push off with your toes instead of your heels.

Supination is usually caused by a hereditary fault with your foot's structure. To put it another way, it may run in families. Supination can also be caused by a lack of strength in particular foot, ankle, and leg muscles.

Supination of the foot is the same as underpronation of the foot, its an alternative name for descirbing it. With supination or underpronation, the majority of the weight is transfered from heel to toe along the outside of the foot.

It is usually characterized by a rigid arch that doesn't depress when weight is applied to the foot. This type of foot will require a medium arch support to best support the entireity of the foot. Calluses can be seen on the outside surface of the foot and small toe of a foot that is pronating. Underpronation can be inherited genetically from your parents but can be managed well with orthotics and other conservative treatments.