During standing, both the position of the cerebral circulation and the reductions in mean arterial
pressure (MAP) and cardiac output challenge cerebral autoregulatory (CA) mechanisms. …

Background Tailored intervention strategies are frequently recommended among approaches
to the implementation of improvement in health professional performance. Attempts to …

In this paper we review recent developments in the methodology of non‐invasive finger arterial
pressure measurement and the information about arterial flow that can be obtained from it…

Background and Purpose—When standing up causes dizziness, tensing of the leg muscles
may alleviate the symptoms. We tested the hypothesis that leg tensing improves orthostatic …

Background— Posture-related vasovagal syncope is by far the most frequent cause of
transient loss of consciousness, and present pharmacological and cardiac pacing treatment …

The proper understanding of the cardiovascular mechanisms involved in complaints of short-lasting
dizziness and the evaluation of unexplained recurrent syncope requires continuous …

During exercise: the Kety-Schmidt-determined cerebral blood flow (CBF) does not change
because the jugular vein is collapsed in the upright position. In contrast, when CBF is …

The relationship between aortic flow and pressure is described by a three-element model of
the arterial input impedance, including continuous correction for variations in the diameter …

Internal jugular veins are the major cerebral venous outflow pathway in supine humans. In
upright humans the positioning of these veins above heart level causes them to collapse. An …

The vasovagal response is the development of inappropriate cardiac slowing and arteriolar
dilatation. Vasovagal responses reflect autonomic neural changes: bradycardia results from …