exercise can be divided into three basic types: stretching or the slow lengthening of the muscles. stretching the arms and legs before and after exercising helps prepare the muscles for activity and helps prevent injury and muscle strain. regular stretching also increases your range of motion and flexibility. cardiovascular or aerobic is steady physical activity using large muscle groups. this type of exercise strengthens the heart and lungs and improves the body's ability to use oxygen. aerobic exercise has the most benefits for your heart. over time aerobic exercise can help decrease your heart rate and blood pressure and improve your breathing (since your heart won't have to work as hard during exercise). strengthening exercises are repeated muscle contractions (tightening) until the muscle becomes tired. for people with heart failure many strengthening exercises are not recommended (see below).
what types of exercise are best for maintaining a healthy heart?