I solved most of my back problems by switching to entirely flat shoes. No arch support at all. No heel drop. No sculpted foot bed. Thin soles. They are basically leather moccasins with a 3mm vibram sole.

While making the adjustment, my calves and tendons hurt for a month or so. Then they adjusted, and wearing regular shoes (dress shoes for events) feels so awkward and unnatural that I cannot stand it.

Contrary to what one might imagine, this did not give me flat feet, but exactly the opposite. My arches have never been stronger or more well formed.

My gait entirely changed. I tend to either place my foot down flat, or put down the ball first.