1. Stand next to a chair or counter. You can use this for support if you begin to fall. You can also stand with your back to a corner and use the walls if you need support.
2. Stand with your feet slightly apart (as you normally stand) and your arms at your side.
3. March in place, lifting each knee high toward the ceiling.
4. Do this 20 times.

Do this exercise twice a day. Try to progress to doing this 30 times and then with your eyes closed.