Results 121 to 130 of about 21,863 (241)

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source

Whole‐body hot water immersion effect on cerebral haemodynamics and subsequent cerebrovascular reactivity to carbon dioxide

Experimental Physiology, EarlyView.
Abstract To test the hypothesis that hot water immersion (HWI) improves cerebrovascular function via shear‐mediated mechanisms, this study determined cerebrovascular reactivity to carbon dioxide (CVRCO2${\mathrm{CV}}{{\mathrm{R}}_{{\mathrm{C}}{{\mathrm{O}}_2}}}$) before and after 60 min of 39°C HWI and a 21°C air control (CON) in 15 healthy ...
Samuel F. Leaney, Ester Tommasini, Guto W. Hughes, Alison M. Shepherd, Nyah D. Kingdon, Justin S. Lawley, Geoff B. Coombs, Jonathan P. Moore, Samuel J. Oliver   +8 more
wiley   +1 more source

Cerebrovascular regulation during heat stress

Experimental Physiology, EarlyView.
Abstract Given that the brain is a highly metabolic organ and is enclosed by the skull, effective regulation of cerebral blood flow (CBF), not only for oxygen and nutrients supply but also as a means of convective heat exchange, is critical for preventing excessive elevations in brain temperature.
Kanoko Ito, Manabu Shibasaki
wiley   +1 more source

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

Experimental 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, Luke Hughes, Brendan R. Scott, Paul S. R. Goods, Shaun YM. Teo, Ann‐Maree Vallence   +5 more
wiley   +1 more source

Feedback from group III/IV afferents in skeletal muscle slows heart rate acceleration when transitioning from rest to low‐intensity exercise in males

Experimental Physiology, EarlyView.
Abstract Group III/IV skeletal muscle afferents respond to intramuscular mechanical and metabolic stimuli and are more active in fatigued muscle. These afferents project onto the brainstem and motor cortex and modulate cardiovascular and motor responses during exercise.
Shane Burgess, Simranjit K Sidhu, Samuel Chalmers, Markus Amann, Jonathan D Buckley   +4 more
wiley   +1 more source

Arterial–venous differences of brain‐derived neurotrophic factor isoforms across the brain and muscle after exercise at different intensities

The Journal of Physiology, EarlyView.
Abstract figure legend Exercise‐induced increases in forearm venous plasma and serum brain‐derived neurotrophic factor (BDNF) are often assumed to be indicative of release from the brain. Sixteen healthy and physically fit adults (20–40 years old) were recruited to investigate whether exercise‐induced changes in forearm venous mature BDNF (mBDNF) and ...
Olga Tarassova, Yiwen Jiang, Helena Wallin, Mats Jensen‐Urstad, Nikola Drca, Julia Röja, Marjan Pontén, Abram Katz, Jonna Nilsson, Maria M. Ekblom, Marcus Moberg   +10 more
wiley   +1 more source

Neuromuscular fatigability with repeated exercise in hypoxia: From single‐joint paradigms to sprints

The Journal of Physiology, EarlyView.
Abstract figure legend Acute hypobaric or normobaric hypoxic exposure accelerates neuromuscular fatigability during repeated exercise. Indices of peripheral and central fatigue are not different at exhaustion in mild, moderate and severe hypoxia compared with normoxia, but task failure occurs earlier.
Luca Ruggiero, Franck Brocherie, Olivier Girard, Nathan Townsend, Chris J. McNeil, Grégoire P. Millet   +5 more
wiley   +1 more source

Dose standardization for transcranial electrical stimulation: an accessible approach. [PDF]

Sci Rep
Toth J, Brosnan M, King RJ, Ivanov B, Arvaneh M.   +4 more
europepmc   +1 more source

Transcranial direct current stimulation enhances delayed retention after 5 days of lower‐limb motor skill learning

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the 5 day lower‐limb motor skill learning protocol combining ankle visuomotor practice with transcranial direct current stimulation (tDCS). Participants were allocated to motor skill practice with active tDCS over the leg representation of primary motor cortex (SKILL‐STIM), motor skill practice with sham ...
August Lomholt Kvistad, Lasse Jespersen, Jonas Rud Bjørndal, Lasse Christiansen, Anke Ninija Karabanov, Jesper Lundbye‐Jensen   +5 more
wiley   +1 more source

Threshold-guided optimization of transcranial electrical stimulation parameters for motor evoked potential monitoring in pediatric spinal surgery. [PDF]

Childs Nerv Syst
Montes Peña VJ, AlEnazy F, AlBishi A, AlSayegh SO, AlEissa S, AlShaya WA, Azzubi M, Jahangiri FR.   +7 more
europepmc   +1 more source