Video Tutorial 157a What Is Foot Pronation And Foot Supination? Is It Good or Bad?

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Are you a pronator of the foot or a supinator of the foot? Do you pronate too much, which is called over pronation or do you supinate too much which is called over supination?

Which one is good or bad for you? and Why?

If you look at the Biomechanical functions of the foot, during the gait cycle the foot can pronate in many different ways based on rearfoot and forefoot function.

Both pronation and supination are natural, normal motions of the foot. Pronation occurs as the foot strikes the ground to allow for better shock absorption. The foot rolling in to absorb the impact is the foot going through a pronation motion. Supination occurs as the foot prepares to toe-off to provide a rigid platform for leverage.

To summarize, everyone is guilty of supination and pronation. If not, we'd have a difficult time walking or running. The problem tends to be when someone pronates or supinates too much.

This places extra stress on the foot and can result in iliotibial band syndrome of the knee, Achilles tendinitis, plantar fasciitis and muscle weakness.

The body’s weight is absorbed In two very interesting ways:
1. Foot Roll When the foot first lands, it rolls, distributing the weight across the foot over a time so it is absorbed gradually in a healthy way without causing shock to the skeleton. The foot rolls from supination (the outside) to pronation (the inside). This is called 'the Foot Roll.'

In order for the foot to land safely without damaging the body, it must roll within a safe range. That means if the foot starts rolling too far on the outside or rolls too far to the inside, it causes the twisting of the lower leg limb. This twisting force will cause abnormal stress and strain through the muscles, ligaments and tendons of the knee, hip, ankle, lower back, lower spine and up through the head which can cause damage.

The chief characteristic of this arch is its elasticity, due to its height and to the number of small joints between its component parts. Henry Gray (1821–1865). Anatomy of the Human Body. 1918.

When we have a weakness in the core of our body that leads to stress on the spine, we don’t brace the spine and tell the patient that they must be in this brace for the rest of your life, we mobilize the area and prescribe exercises that will keep the area moving in all directions that support the area ranges of motion plus we tell them that they must do these exercises for the rest of their life.

It’s the only thing you know.....

Posterior tibial tendon dysfunction is the most common cause of acquired flatfoot deformity in adults. The arch is further supported by the plantar aponeurosis, by the small muscles in the sole of the foot, by the tendons of the Tibialis anterior and posterior and Peronæus longus, and by the ligaments of all the articulations involved. Henry Gray (1821–1865). Anatomy of the Human Body. 1918.

The Peronæus longus also everts the sole of the foot, and from the oblique direction of the tendon across the sole of the foot is an important agent in the maintenance of the arch. Henry Gray (1825–1861). Anatomy of the Human Body. 1918.

Why hasn't my doctor or trainer talked about these muscles?

The muscles that assist in the negative or eccentric loading the force of impacts during walking running or the performance of sports or leisure activities are sometimes forgotten by doctors and trainers.

What are the Muscles of the Pronation Supination Cuff, which I also refer to as the landing muscles or the spring suspension system muscles?
We have to begin by learning the muscles we need to strengthen.

The muscles of the spring suspension system of the foot and ankle consist of the tibialis posterior, tibialis anterior, peroneus longus, and peroneus brevis.

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