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Increased heart rate causes systolic pressure to increase or decrease mean arterial pressure?
Wiki User
∙ 16y ago
Mean arterial pressure can be thought of as 1/3 systolic + 2/3 diastolic since the heart spends slightly more time is diastole (rest) that it does in systole (contracting).
MAP = 1/3 systolic + 2/3 diastolic.
Therefore, an increase in either systolic or diastolic will increase the MAP. Additionally, under physiological conditions, an increase in heart rate will increase blood pressure. Increased HR leads to increased cardiac output, among other things, which increase blood pressure.
Wiki User
∙ 16y ago
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