The Blister Blog
Friction plays a big part in making blisters. But friction isn’t a bad thing. You need friction for traction. Without it, your foot would slide around too much.
Blister incidence has been investigated in athletes, hikers and military populations and ranges from 33% - 50%.
Static friction causes blisters because it results in more shear than dynamic friction. Imagining the foot as a wobbly box helps to explain.
The shoe-sock interface holds huge potential for blister prevention. One of the main advantages is the potential for a truly long-lasting effect.
Pressure doesn’t cause blisters! But it is part of the problem. Why do we call them friction blisters, not pressure blisters? Let me show you why.