There are videos under the exercise tab that are seated workouts. I started with those when I began exercising in April and they were wonderful. I also do aquafit which is such a pleasure with a minimum of stress to my legs.
"There's nothing in the world greater than true love,except a nice MLT--mutton, lettuce, and tomato sandwich, when the mutton is nice and lean and the lettuce is crispy..." -Miracle Max