SDN Members don't see this ad. (About Ads) Over the last few months, I have noticed a number of insole products being sold that advertise having a shock/impact absorbing quality. To provide an example, Dr. Scholl's new "Active Sport" insole claims to absorb 40% of the shock from the impact of running. There's even a company selling insoles constructed with a form of Kevlar that they claim absorbs 80% of impact shock. Since you guys are podiatrists, can you confirm/refute these products' claims regarding shock absorption? Generally speaking, could someone actually avoid developing, say, knee or hip arthritis by running with such insoles in their shoes?