My thinking is that a spring that can provide power also absorbs power. Basically a low-pass filter, like a capacitor. IDK. I've tried the socks, the boots you wear while you try to sleep but can't because they itch too much, and all kinds of shoes. Honestly, I'm at the point where I'll try just about anything.
Anecdata, which I welcome you to ignore: A plantar fasciitis sufferer I know got substantial relief by walking around barefoot in the house at every opportunity. This helped because the tissues in the foot were actually too loose and flexible, which was the root cause of the complaint. The fascia was rolling around all over the place and becoming inflamed as a result. Doctor-prescribed stretching regimens and arch supports had actually made the condition worse. A physical therapist recommended the correct course of action, which was almost exactly the opposite: walking barefoot helped tone and strenghten the feet, and the inflammation subsided.
While an ideal spring may not exist, the foot itself might be the next best thing suited to that goal. Itβs full of nerves that allow the brain to make micro adjustments, as well as muscles for executing those compensations in real time, based on feedback thats coming from the ground.
