Westmar, you could do some upper body exercise -- Also when I had major leg surgery ages ago I did alot of leg lifts (thigh to ankle brace), mini sit ups, worked my good leg as much as I could.
Personally I can't do much right now either as I am getting over (I hope) pneumonia with asthma along with it so it's really hard to breathe.
"Its not enough for the food to just be nutritious. It must also be delicious, or eating will feel like a punishment." Meg Galvin, Smartpeople Cookbook.