I am a fitness Xpert....need any help???? Please feel free to ask......

this is an old one but think you are stillhere. hatley asking if there is any way I at 83 with a foot in a brace can still exercise in some way to rev up my metabolism and lose some weight? There must be something I can do,its hard for me to walk far, I do have an exercise band with handles like a jumping rope I could use if I knew what moves to do to burn up calories.