Sympathoexcitation is a hallmark of hypoxic exposure, occurring acutely, as well as
persisting in acclimatised lowland populations and with generational exposure in highland …

New Findings What is the topic of the review? Sympathoexcitation and sympathetic control
of blood pressure at high altitude. What advances does it highlight? Sustained …

Acute exposure to hypoxia causes chemoreflex activation of the sympathetic nervous
system. During acclimatization to high altitude hypoxia, arterial oxygen content recovers, but …

New Findings What is the central question of this study? High‐altitude hypoxia increases
muscle sympathetic nerve activity (MSNA), but whether intravenous infusion of dopamine, to …

Combined results from different independent studies suggest that acclimatization to high
altitude induces a slowly developing sympathetic activation, even at levels of hypoxia that …

During continued exposure to hypobaric hypoxia in acclimatizing lowlanders increasing
norepinephrine levels indirectly indicate sympathoexcitation, and in a few subjects serial …

We sought to determine the influence of sympathoexcitation on dynamic cerebral
autoregulation (CA), cerebrovascular reactivity, and ventilatory control in humans at high …

Key points Hypoxia, a potent activator of the sympathetic nervous system, is known to
increase muscle sympathetic nerve activity (MSNA) to the peripheral vasculature of native …

Purpose Autonomic control of the heart is balanced by sympathetic and parasympathetic
inputs. Excitation of both sympathetic and parasympathetic systems occurs concurrently …

The hypoxic chemoreflex and the arterial baroreflex are implicated in the ventilatory
response to exercise. It is well known that long-term exercise training increases …