Hi ive been on a calorie controlled diet on and off for the last couple of months and lost a stone and 5lbs without really exercising apart from walking my dogs. i been trying different fitness dvds but i cant seem to do all the exercises due to a knee injury that is permanent. its really frustrating as i feel its holding me back on my weight loss. Can anyone recommend any exercises that can help and doesn't involve any pressure on the knee. I've been told by my doctor not to run or cycle as it irritates my knee. Any suggestions would be greatly received.