For mellow movement that helps your heart, try tai chi

Tai chi is a gentle, adaptable practice that features flowing movements combined with breathing and cognitive focus. It may be especially helpful for people who are recovering from a heart attack or other medical problems or who have heart failure. Tai chi also can be a gateway to other types of physical activity because the practice may improve balance, reduce the risk of falls, and even help ease lower back pain—a common reason for avoiding exercise.