Results 181 to 190 of about 28,548 (239)

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

Repeatability and reliability of cerebrovascular reactivity in young adults using multi-echo, multi-contrast MRI. [PDF]

J Cereb Blood Flow Metab
Keeling EG, Bergamino M, Ott LR, McElvogue MM, Stokes AM.   +4 more
europepmc   +1 more source

Changes in cerebrovascular reactivity within functional networks in older adults with long-COVID. [PDF]

Front Neurol
Pommy JM, Cohen A, Mahil A, Glass Umfleet L, Swanson SJ, Franczak M, Obarski S, Ristow K, Wang Y.   +8 more
europepmc   +1 more source

No difference in mean middle cerebral artery blood velocity responses between lower‐ and upper‐body unilateral resistance exercise in untrained individuals

Experimental Physiology, EarlyView.
Abstract Dynamic resistance exercise (RE) produces sinusoidal fluctuations in blood pressure that are mirrored by middle cerebral artery blood velocity (MCAv). However, whether lower‐ or upper‐body RE elicits a differential cerebrovascular response has not yet been examined.
Stephanie Korad, Toby Mündel, Blake G. Perry   +2 more
wiley   +1 more source

Benefits and challenges of multi-delay arterial spin labeling in clinical practice: measuring perfusion and cerebrovascular reactivity in intracranial steno-occlusive disease. [PDF]

Insights Imaging
Uniken Venema SM, Bhogal A, Dankbaar JW, van der Worp HB, Hendrikse J, van der Zwan B, Braun K, Siero JCW, Deckers PT.   +8 more
europepmc   +1 more source

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli, Juliene G. Costa, Kristanti W. Wigati, Jesse L. Criddle, Julie J. Collis, Xingwei Xu, Louise H. Naylor, Howard H. Carter, Shane K. Maloney, Robert A. McLaughlin, Andrew Haynes, Helen Jones, Keith George, Daniel J. Green   +13 more
wiley   +1 more source

Cerebrovascular reactivity: a stress test of brain vascular health in moyamoya disease. [PDF]

Brain Commun
Fan AP, Juttukonda MR.
europepmc   +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

The Effect of Diagnostic Hypercapnic Cerebrovascular Reactivity Imaging on Vital Signs and Acute and Follow-Up Ischemic Adverse Events in Patients with Flow-Limiting Intracranial Arterial Stenosis. [PDF]

AJNR Am J Neuroradiol
Leguizamon M, Han C, Garza M, Horne M, Richerson WT, Davis LT, Martin D, Fusco M, Chitale R, Jordan LC, Donahue MJ.   +10 more
europepmc   +1 more source