One of the most effective ways of engaging students of physiology and medicine is through
laboratory demonstrations and case studies that combine 1) the use of equipment, 2) …

Purpose Continuous peripheral pulse oximetry for monitoring adequacy of oxygenation is
probably the most important technological advance for patients' monitoring and safety in the …

This study aimed to investigate the effects of sustained hypoxic exposure on cerebral and
muscle oxygenation and cardiorespiratory function at rest. Eleven healthy subjects inhaled a …

Changes in cerebral perfusion and CO2 cerebrovascular reactivity during and immediately
after a sojourn at high altitude remain unclear but may be critical for acclimatization. The aim …

The brain is a vital organ that relies on a constant and adequate blood flow to match oxygen
and glucose delivery with the local metabolic demands of active neurons. Thus exquisite …

To examine if cerebral (frontal cortex) and skeletal muscle (m. vastus lateralis)
deoxygenation and cerebral blood flow velocity (Vmean) in the middle cerebral artery …

We examined the cardiorespiratory and cerebrovascular responses to hyperoxic and
hypoxic rebreathing at low attitude and high altitude. We measured ventilation, middle …

Background Carbon dioxide (CO2) is a recognized vasodilator of myocardial blood vessels
that leads to changes in myocardial oxygenation through the recruitment of the coronary flow …

This study investigated the changes in cerebral near-infrared spectroscopy (NIRS) signals,
cerebrovascular and ventilatory responses to hypoxia and CO2 during altitude exposure. At …

Cerebral vasodilation and increased cerebral oxygen extraction help maintain cerebral
oxygen uptake in the face of hypoxemia. This study examined cerebrovascular responses to …