Autonomic mechanisms associated with heart rate and vasoconstrictor reserves

Abstract

Hemorrhage is accompanied by baroreflex-mediated tachycardia and vasoconstriction. The difference between baseline and maximum responses is defined as the heart rate (HR) and vasoconstrictor ‘reserve’. To test the hypothesis that higher HR and vasoconstrictor reserves in subjects with high tolerance (HT) to central hypovolemia is associated with greater… (More)
DOI: 10.1007/s10286-011-0151-5

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