Coupling of spontaneous changes in muscle sympathetic nerve activity to blood pressure in humans: potential influence of age [abstract]

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Coupling of spontaneous changes in muscle sympathetic nerve activity to blood pressure in humans: potential influence of age [abstract]

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Title: Coupling of spontaneous changes in muscle sympathetic nerve activity to blood pressure in humans: potential influence of age [abstract]
Author: Fairfax, Seth T.; Young, Colin Neal, 1981-
Keywords: autonomic nervous system
diastolic blood pressure
Date: 2010-11-11
Abstract: Previous studies indicate a 5.5 second latency between a burst of muscle sympathetic nerve activity (MSNA) and the resultant peak blood pressure response, which averages up to 3 mmHg. Aging may attenuate α-adrenergic sensitivity, impair baroreflex function, and hence affect the ability to sympathetically modulate blood pressure. Yet a thorough examination of these relationships in older adults has not been performed. Purpose: To compare the relationship between spontaneous changes in MSNA to changes in blood pressure in young and older men.
URI: http://hdl.handle.net/10355/9198

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