When we go to buy a sneaker, we look at its design and features before making a decision. We also value the distance we travel per day as well as the type of foot we have.
An important point that we tend to look at is the flexibility of the shoe. One of the common ideas is that shoes are better the more flexible they are. However, a distinction must be made between cushioning and flexibility.
Differences between damping and flexibility
Cushioning is the resistance of the sole of the shoe to absorb the impact of walking or running, taking into account that this impact can be up to 5 times the body weight of the person.
Flexibility is the ability of the shoe to bend inward from the ends.
Therefore, to explain the degree of flexibility or stiffness that the shoe should have, we will use the example of the spoon. If a spoon is placed on a flat surface and pressure is applied to the end of the concave part, a leverage effect is produced that causes the end to lift. In the same way, the stiff sole of the shoes causes a leverage effect that helps when running or walking.
The key to making a shoe flexible or tough
Whether a shoe is more or less flexible depends on the shank. The material from which it is made will affect the leverage effect to a greater or lesser extent. There are slippers with shirring made of different materials such as PVC, cardboard or metal. Extremely flexible slippers may not have a shank, which is not good for foot health.
In the San Roman Clinic we can help you choose the best shoes based on your foot, with studies of the footprint and give solution to any problem you have with your feet.
Article prepared by Clínica San Román
Date of publication: 22-11-2017
Date of revision: 3-02-2020