Let The Earth Move Your Feet
Having mobile joints in your feet is important for being able to maintain balance, increasing the sensory feedback from your feet to your brain, and for your hip's ability to stabilize your leg while walking. It may seem prudent to avoid stepping on uneven objects on your path, but for the sake of mobilizing your feet, I suggest pausing your walk and spending a little time stepping onto an uneven and hard surface. This is easier done if you walk barefoot or with minimalist shoes, but you can practice simply by taking off your shoes for a short period during a walk. Find an object that is hard and uneven such as a rock and simply put your foot over it and apply pressure down. Put as much pressure as is tolerable but not painful. It should feel like a stretch. Shift your foot so that you apply pressure to as many parts of the foot and as many angles as possible. As you apply pressure, the intention is to allow the joints of the foot to mold over the object. The more your foot can conform to the earth underneath you, the better able you will be to adjust your balance and gait.
