Results 191 to 200 of about 70,695 (313)

Brain strain: Blood flow and metabolism in environmental extremes

open access: yesExperimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak   +3 more
wiley   +1 more source

Galvanic vestibular stimulation reveals disruption of ipsilesional brainstem pathways in hemiparetic stroke survivors

open access: yesExperimental Physiology, EarlyView.
Abstract The spatiotemporal structure of muscle coordination emerges from the collaboration and competition among cortical, brainstem and spinal pathways onto motor neuron pools, each continuously shaped by task demands, limb position and descending tract integrity.
Angelo Bartsch‐Jiménez   +2 more
wiley   +1 more source

Translational perspectives on neurophysiological responses and mechanisms in blood flow restriction exercise

open access: yesExperimental Physiology, EarlyView.
Abstract Maintaining corticospinal tract function is crucial for voluntary movement. Exercise using high external loads/intensities is a promising intervention to promote adaptations to the corticospinal tract and improve physical function; however, such loads/intensities may not be tolerable or safe in populations with neurological disorders, motor ...
Kai T. Fox   +5 more
wiley   +1 more source

Effects of baclofen and lorazepam on interhemispheric inhibition in humans

open access: yesExperimental Physiology, EarlyView.
Abstract Transcallosal projections within the corpus callosum allow for the transfer of information between bilateral primary motor cortices (M1). Interhemispheric inhibition (IHI) is one approach to probe transcallosal communication using transcranial magnetic stimulation (TMS) whereby the motor evoked potential (MEP) elicited by TMS is reduced in ...
Faith C. Adams   +8 more
wiley   +1 more source

The role of acid‐base balance in cerebrovascular and ventilatory responses to CO2 during 10 h normobaric hypoxia

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend During 10 h exposures to normobaric hypoxia exposure there was a selective leftward shift in ventilatory response to hyperoxic hypercapnic rebreathing, but not the cerebrovascular response. The key findings are that the resetting of the central chemoreflex to lower PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$ during early hypoxic ...
Holly Barclay   +3 more
wiley   +1 more source

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