Remove shoes and socks and sit in a chair and place both feet flat on the floor. Place a washcloth on the floor next to your feet and curl your toes to grip and lift it. Regardless of whether you can do it or not, the simple process of curving your toes helps rebuild the strength in your toes and arches.
Sit down and place a small ball--such as a tennis ball or a baseball--on the floor. Roll your foot back and forth over the ball. Not only does this strengthen the arch, it also massages it. This is also an effective way to relieve pain after a long day on the golf course.
This exercise should be done after you have already started to regain strength in your feet--it's not meant for the early stages of recovery. Stand with your feet shoulder-width apart. Raise and lower your heels toward and away from the floor. With the permission of your doctor, you can do this exercise one foot at a time. It's effective for overcoming weakness from foot surgery because it builds strength in the toes, arches and Achilles' tendons.