Are there workouts that you can do with a broken foot?

Asked by snowyowl_ecs (417) September 25th, 2010 from iPhone

Last December I broke my foot which led to nerve damage. I still have to wear an air cast and I can’t do a lot of walking. I go to physical therapy which helps me move and work the muscles in my leg. Because my activity has been significantly lessened, I’ve gained about 30 pounds. I’ve not changed my diet, and i consider myself to be a healthy eater. Before I injured myself I was a fairly active person. I never really worked out, but I walked about 10 miles every week at the park with my dog. I was in relatively good shape, but now not so much. I was wondering if there are any exercises that could help me lose weight without having to use my injured foot.