Torsional and Flexion Stability are desirable features to assist in protection from the adverse impact of excessive pronation and to help those individuals with plantar fasciitis. Lateral stability is also desired to lessen the possibility of ankle sprains.
The current commonly used terms of stability and motion control are poorly chosen and inappropriately used. The way these terms are used in shoe descriptions does not reflect biomechanical function and are confusing and potentially misleading. We choose to define shoes function in degrees of protection from over pronation (which is a form of stability and motion limitation) using the term "pronation control". This method is used rather than creating confusion by the use of two similar terms taken to mean something different than they should. Many of the shoes we rate as offering mild pronation control are often categorized as "neutral" shoes.