Did It! I worked out on the treadmill for an hour. I call it a workout rather than a walk because I did isometric exercises for the abdomen, buttocks, and bladder.
To keep my routine exciting, I started doing squats and lunges with light weights for about 5-10 minutes before hitting the treadmill.
Average HR 140; Maximum HR 173. Twenty percent of the workout was in zone 5, anaerobic metabolism. The latter surprised me. I felt fantastic even when my HR shot up. I almost continued running but did not want to risk injury or harm to my health. Exercise is to help my body function the best it can. Pushing myself to a heart rate above 160 risks doing more harm than good.
So, what exercise did you do today?