What kind of weight loss aerobic exercise can be recommended for elderly patients with poor legs and feet?

I see our side of the neighborhood downstairs moncler outlet online generally bad legs are first to go to the park, and after that not to skate but to "hit the tree" our hometown side of the more popular, as long as you stand in a place or chest to lean against the tree, or behind to hit the tree, of course, no tree can also refer to the general column, attention to the Road to relaxation. The legs and feet do not affect the body of aerobic exercise, every day also adhere to the 30-40 minutes sweating is appropriate, and so thin down the knee pressure is not too big and then consider aerobic walking exercise.