Physically I am not getting much exercise. Yes, sudden short bursts and much time hanging on, but I simply cannot go for a walk. It’s one step at a time, and always hanging on. Sitting is a fatiguing amount of work, so I lie down most of the time. However, I have one rule, and that is before cocktail hour I do twenty 80% squats and twenty 50% pushups. By an 80% squat, I do not bend my knees all the way down for fear of straining them - just 80%. Same for the pushups, not from the floor but from the steps at half my height, hence 50%.