Orthostasis

 
National Institutes of Health

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Review
2008
Review
2008
OBJECTIVE Exposure to stressors alters activities of the adrenomedullary hormonal system (AHS), hypothalamic-pituitary… (More)
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2007
2007
BACKGROUND AND PURPOSE The underlying mechanisms for reductions in cerebral blood flow (CBF) during orthostasis are not… (More)
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Highly Cited
2004
Highly Cited
2004
BACKGROUND We tested the hypothesis that individual variability in orthostatic tolerance is dependent on the degree of neural and… (More)
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2001
2001
Orthostasis is characterized by translocation of blood from the upper body and thorax into dependent venous structures. Although… (More)
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Highly Cited
2000
Highly Cited
2000
BACKGROUND AND PURPOSE The relationship between middle cerebral artery (MCA) flow velocity (CFV) and cerebral blood flow (CBF) is… (More)
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Highly Cited
1999
Highly Cited
1999
The relationship between aortic flow and pressure is described by a three-element model of the arterial input impedance… (More)
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Review
1999
Review
1999
Near-infrared (IR) light easily penetrates biological tissue, and the information offered by in vivo spectroscopy of cerebral… (More)
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1995
1995
Major depressed patients showed greater heart rate, noradrenaline, and free-serotonin values than normal. Conversely, platelet… (More)
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1993
1993
Heart rate variability at rest, during deep breathing, or standing up and with the Valsalva manoeuvre did not differ… (More)
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Highly Cited
1979
Highly Cited
1979
We assessed the release of neuronal and adrenomedullary catecholamines in response to various stimuli of the sympathetic nervous… (More)
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