I’ve seen a number of runners recently who have been prescribed orthotics or motion control running shoes, because of apparent issues with over pronation. The time line has typically been the same in that the change in footwear is followed a few weeks later by the onset of knee pain.
A healthy amount of pronation and supination helps to load the pelvis to generate power to move forward. If this motion is inhibited, it can cause all sorts of problems and compromise performance. This is where we need to understand the difference between position and motion. For instance, we need to ask whether the pronated foot has more pronation available? Is there really over pronation, or is that amount of pronation actually just normal for that individual runner?
The decisions to alter the amount of pronation shouldn’t be taken lightly and should consider a number of factors including running history, foot type, running style, injuries and training goals. We also need to consider what other management options are available, before changing the environment of the foot.
We need to consider not just what happens when the foot hits the floor, but also how the reactions in the foot affect the whole biomechanical chain. Up the leg and beyond………..