I wrote this for a student with osteoarthritic knees. We’ve been working on correcting the way her leg bones spiral when bending and straightening. The correct direction of spiral removes the pain completely. This has been going well, so I felt it was time to address the subject of her so called “healthy shoes”, ultra padded running shoes replete with motion control, arch support and a hidden 1.5-inch heel lift.
To get the knees to work better, it’s going to help if the feet and ankles can do their job in the most unfettered manner possible. When we go barefoot, the foot can change shape and adapt more flexibly to different surfaces and different physical demands. The intrinsic muscles of the foot get strong and flexible. The forefoot and rear foot have the freedom to counter twists appropriately between inversion/pronation and eversion/supination, depending on the stage of the gait cycle. This means that ground reaction force moves up through the body in a way that creates powerful stored elastic tension and spares the joints from pain and wear. Restrictive shoes might jack up the heel, limit foot motion via arch support, control pronation, squeeze the toes, among a few of the impositions on natural movement.
We tend to think of our hands as sensitive intelligent instruments and our feet as bricks that we shove into padded casing. Your foot has 26 bones and 33 joints. The sole of the foot is a rich landscape of sensory receptors. Our feet have evolved to move in a myriad of directions and relay a rich schema of environmental data to our brain. In shoes with very padded soles, our sensory feedback is diminished. In the absence of good data, the brain protects the body by tensing the feet, ankles, knees, and everything above.
You can test this out. Wear only one sock and have one barefoot foot. Walk around your house. Notice the difference in how your two legs move. Which leg is freer and more fluid? Which foot feels secure? Which leg do you trust? Which limb feels pleasurable to use? If your answer is the side that’s barefoot, you have just discovered the impact of better proprioceptive data on physical movement.
You can assist this process by using a foot roller or other implement to wake up the sensory receptors in the skin of your feet. If you google wooden foot roller, you’ll get dozen’s of results.
Minimalist shoes offer less support and protection to the foot, and can take a while to get used to. I recommend starting with only an hour or two at a time to help the intrinsic muscles of the foot adapt to the new level of work demand.
Flip flops, although they appear minimal, can be a problem because it’s necessary to squeeze the toes to keep the shoe on. Same thing with clogs. You want your toes to only have to do the work they were meant to do.
And hey, summer is coming. Time to go to the beach and feel the sand between your toes.
P.S. As a final note, it is possible to use your feet well, or at least better, while wearing fashionable shoes. This is the sort of thing that I help my acting students work with. It’s reasonable to choose aesthetics over function to survive in our culture from time to time. I tend to save my fashionable shoe time for tango or the occasional date night. The rest of my life, I like to let my feet roam free.