All your effort is admirable, and I will use you as a role model as I keep trying to slow down the clock. Good to see you have taken a good look at the Plank - know there are several types, starting with 'beginner' level planks to keep you from injury and subsequent regression. Planks are good way to reduce blood pressure (make sure you breathe when you do these). Medicine ball for stationary workout - doing curls, lifting ball with one arm over head, everything you need to build up to. Passing ball in figure 8 pattern between and around both legs, around and behind my back. I need to do more, but I am doing some.