Women Have Lower Tonic Autonomic Support of Arterial Blood Pressure and Less Effective Baroreflex Buffering Than Men
نویسندگان
چکیده
منابع مشابه
Women have lower tonic autonomic support of arterial blood pressure and less effective baroreflex buffering than men.
BACKGROUND Short-term and tonic regulation of arterial blood pressure (BP) differ in premenopausal women and men of similar age. The autonomic nervous system (ANS) plays a critical role in BP regulation. METHODS AND RESULTS To test the hypothesis that women have lower tonic ANS support of BP (reduction in intra-arterial BP during acute ganglionic blockade [GB] with intravenous trimethaphan) a...
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Static muscle contraction activates metabolically sensitive muscle afferents that reflexively increase sympathetic nerve activity and arterial pressure. To determine if this contractioninduced reflex is modulated by the sinoaortic baroreflex, we performed microelectrode recordings of sympathetic nerve activity to resting leg muscle during static handgrip in humans while attempting to clamp the ...
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متن کاملAltered autonomic support of arterial blood pressure with age in healthy men.
BACKGROUND Primary aging is associated with changes in the autonomic nervous system (ANS), but the functional significance of these changes for systemic circulatory control of arterial blood pressure (BP) is unknown. We tested the hypothesis that ANS support of BP is altered in healthy older humans. METHODS AND RESULTS A total of 23 young (aged 24+/-1 years; systolic/diastolic BP, 126+/-2/66+...
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The autonomic nervous system plays a central role in both acute and chronic blood pressure regulation in humans. The activity of the sympathetic branch of the autonomic nervous system is positively associated with peripheral resistance, an important determinant of mean arterial pressure in men. In contrast, there is no association between sympathetic nerve activity and peripheral resistance in ...
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ژورنال
عنوان ژورنال: Circulation
سال: 2005
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.0000153864.24034.a6