Listen to your body. Burning and fatigue are ok - if you feel pain, stop exercising. If not better after rest, elevation, and ice, see your...

Try rollerblading/inline skating. It's vigorous exercise for those with good balance. Don't forget your wrist guards and a helmet Try swimming...

Be consistent. Set a daily schedule and keep to it. In no time, you will feel so good you won't want to change it Break it up!   If you cannot...