Results 111 to 120 of about 37,236 (267)

Relationship between Ventilation/Perfusion Ratio Mismatch and Capnogram Phase III Slope in Acute Bronchoconstriction and Its Modulation by Salbutamol Assessed by Synchrotron Imaging in Rabbit Lung. [PDF]

Anesthesiology
Bayat S, Albu G, Fodor GH, Guilbart M, Porra L, Petak F, Babik B.   +6 more
europepmc   +1 more source

A comparison of normobaric and hypobaric hypoxia effects on cerebrovascular response pre and post maximal exercise

Experimental Physiology, EarlyView.
Abstract A lack of consensus remains on whether normobaric hypoxia (NH) and hypobaric hypoxia (HH) may differentially impact physiological factors affecting cerebrovascular regulation, particularly with an additional strenuous exercise component. We sought to compare the acute effects of NH and HH on global cerebral blood flow (gCBF) at an altitude ...
Rachel Turner, Giovanni Vinetti, Giacomo Strapazzon, Hannes Gatterer   +3 more
wiley   +1 more source

A modified CO-related EIT parameter was used to evaluate pulmonary ventilation-perfusion ratio during prone position and inhaled nitric oxide therapy: a case report. [PDF]

Front Med (Lausanne)
Xu J, Zhong M, Liu D, Guan J, Qi X, Tan R, Li P, Zhao Z, Qu H, Liu J.   +9 more
europepmc   +1 more source

Sex differences in the prefrontal cortex and muscle oxygenation during exercise until exhaustion in endurance‐trained individuals

Experimental Physiology, EarlyView.
Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López, Raúl Caulier‐Cisterna, Benjamín Díaz‐Ortiz, Cristóbal Baumann‐Biancani, Kamilo Hunger‐Abbott, Matías Herrera‐Matas, Andrés Vega‐Moraga, Vitor A. Lira, Maximiliano Espinosa‐Ramírez, Karol Ramírez‐Parada, Luigi Gabrielli‐Nervi, Hugo E. Verdejo, Felipe Contreras‐Briceño   +12 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

Vascular and skeletal muscle oxidative capacity responses to continuous double and single leg cycling

Experimental Physiology, EarlyView.
Abstract The purpose of this work was to determine endothelial, microvascular, skeletal muscle oxidative capacity (SMOC) and cardiorespiratory responses to an acute bout of continuous single leg cycling (SLC) and double leg cycling (DLC). Ten recreationally active men and women volunteered to participate in this investigation and reported to the ...
Edward Z. Pelka, B. Ryan Davis, John McDaniel   +2 more
wiley   +1 more source

Accuracy of electrical impedance tomography to detect perfusion defects in pulmonary embolism. [PDF]

Crit Care
Rodrigues EAP, Pacheco EC, Nakamura MAM, Dos Santos ACC, de Melo JL, Plens GM, Alcala GC, Victor M, Xin Y, Cereda M, Gomes S, Lee HJ, Ribeiro BM, Ianotti RM, Freitas-Filho O, Alves-Jr JL, Berra L, Morais CCA, Bertacchini L, Mlček M, Souza R, Borges JB, Costa ELV, Amato MBP.   +23 more
europepmc   +1 more source

Small muscle mass aerobic exercise in health and disease: Unique insights into muscle vascular and metabolic control and performance

Experimental Physiology, EarlyView.
Abstract Studies of small muscle mass exercise (SMME) have revealed that the peripheral O2 transport–utilization cascade is a dynamically regulated system in which perfusive and diffusive components can be selectively amplified, redistributed and mechanically limited depending on contraction pattern, recruitment strategy and intramuscular pressure ...
Shunsaku Koga, David C. Poole, Thomas J. Barstow, Dai Okushima, Richie P. Goulding   +4 more
wiley   +1 more source

Plant‐protein supplementation improves thermoregulatory responses and ameliorates markers of intestinal damage during exercise in the heat

Experimental Physiology, EarlyView.
Abstract Exercise in the heat often causes gastrointestinal (GI) disturbances, which can impair performance. Single amino acid supplementation can attenuate gut damage and enhance exercise tolerance; however, the effectiveness of innate amino acid blends from plant‐based proteins remains underexplored.
Robyn Aitkenhead, Mark Waldron, Gillian E. Conway, Katy Horner, Shane M. Heffernan   +4 more
wiley   +1 more source

The acute and chronic effects of local aerobic exercise on cardiovascular physiology

Experimental Physiology, EarlyView.
Abstract Exercise training has beneficial effects for primary and secondary prevention of cardiovascular disease (CVD). Effects of exercise training have typically been studied in the form of whole‐body exercise training, partly driven by the assumption that larger effects of exercise training can be achieved by involving more and larger muscle groups.
Myrthe P. F. van de Ven, Janneke Vloet, Daphne Merkus, Dick H. J. Thijssen   +3 more
wiley   +1 more source