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The cardiac cycle is the sequence of pumping and filling that occurs from the start of a heartbeat to its finish. The heart undergoes two main events during a complete cardiac cycle, diastole and systole. During diastole, the heart relaxes and fills with blood and during systole, the heart contracts and pumps the blood.What are examples cardiovascular activity?
Cardiovascular exercise definition. Exercise that noticeably increases your heart rate and breathing and involves the continuous rhythmic movement of your large muscle groups. Examples include: walking, jogging, biking, and swimming. Cardiovascular exercise challenges and strengthens your cardiovascular system.