Hi, Oliveaux. I also have back problems but have been trying to exercise. I find just walking to be the best. But if I start hurting much, I slow down and then quit. I can see where walking the dog would not work well for us with back pain. And if the grocery cart gets too heavy, then I turn it over to hubby!
My fear is that I will do something that will make my back worse. So, I listen to it, up to a point. I suggest you start slow and gradually build up. And I also take a lot of pain meds!