Improve your walking technique
> It’s worth the effort because there’s usually a huge leak of energy when our gait is unbalanced or restricted.<p>Why do I want my walk to leak less energy / be more efficient? A fast walk is nowhere near my aerobic limit, so what would be the benefit of using less energy? Having a sedentary job, I generally need more exercise, not less.<p>A better thing to optimize for would be less impact on knees and back.