Question to help hubby, who has knee problems

Sassywolf

I need some help. My hubby has knee issues and he walks with a cane. He can't stand for any length of time and can't bend his left knee. There is a cyst behind the kneecap. So what we need is some exercises that will help him lose weight and help him lose the gut he is forming. We are on a low-fat diet and are working on other areas of our food as well. I have got him to start being accountable for his food and having him track what he does, so that he knows what is going on. Please if anyone has any ideas, it would be greatly appreciated.