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Question
Tell me, why in athletes, their heart rate is slower than that of normal people?
Vo Thi Cam Tuyet (2000)
Reply
Hello. When athletes train at high intensity, the blood supply to the muscles increases. To meet that need, the heart must beat faster. In addition, gradually the chambers of the heart also dilate and the walls of the heart thicken, so that the amount of blood per stroke of the heart also increases (increase in stroke efficiency).
The concept of cardiac output is the amount of blood the heart can supply in 1 minute, equal to the amount of blood per stroke x heart rate. During exercise or competition, the heart rate will increase to contribute to an increase in blood supply. But when resting, the need for blood supply decreases, thanks to the high efficiency of each stroke, so the heart only needs to beat slowly to provide the necessary blood supply.
Thank you for your question to Vinmec Health System. Best regards.
Answered by Specialist Doctor II, Excellent Doctor Nguyen Bang Phong - Internal Medicine - Cardiovascular Intervention cum Head of Heart Failure Clinic Cardiovascular Center - Vinmec Times City International Hospital.
