Our feet and ankles contain more than 100 bones, tendons, muscles, and ligaments, and form 33 joints. All of these moving parts work together to support and balance the weight of our bodies, and keep in mind, the average person takes between 8000 and 10,000 steps every day. All it takes is a mild sprain, strain, or injury to the foot or ankle to cause pain, limit mobility, and potentially lead to more serious problems.