Results 11 to 20 of about 1,676,600 (294)

Oral Water Has Cardiovascular Effects Up to 60 min in Shock Patients

open access: yesFrontiers in Cardiovascular Medicine, 2021
Aim: Little is known about the cardiovascular effects of oral water intake in shock patients. This study was designed to assess the effect of oral water on stroke volume and blood pressure during a 1-h time period.Method and Results: This open-label ...
Pierre-Grégoire Guinot   +15 more
doaj   +1 more source

The effects of betaine supplementation on fluid balance and heat tolerance during passive heat stress in men

open access: yesPhysiological Reports, 2023
Introduction Consuming intracellular osmolytes, like betaine (BET), may attenuate symptoms of heat stress. The purpose of this study was to examine the effects of BET supplementation on fluid balance and heat tolerance after a 7‐day loading period and ...
Brandon D. Willingham   +3 more
doaj   +1 more source

Assessment of volemia status using ultrasound examination of the inferior vena cava and spectroscopic bioimpendance in hemodialysis patients [PDF]

open access: yesVojnosanitetski Pregled, 2022
Background/Aim. Hypervolemia is an important risk factor for the development of cardiovascular morbidity and mortality in patients treated with regular hemodialysis. There is still no reliable method for assessing the status of volemia in these patients.
Lazarević Tatjana   +8 more
doaj   +1 more source

Impact of sodium citrate ingestion during recovery after strenuous exercise in the heat on heart rate variability: A randomized, crossover study

open access: yesPhysiological Reports, 2022
Changes in hydration status influence plasma volume (PV) which is associated with post‐exercise parasympathetic reactivation. The present study hypothesized that, after dehydrating cycling exercise in the heat (DE), stimulation of PV expansion with ...
Janis Fiedler   +7 more
doaj   +1 more source

Dose of Bicarbonate to Maintain Plasma pH During Maximal Ergometer Rowing and Consequence for Plasma Volume

open access: yesFrontiers in Physiology, 2022
Rowing performance may be enhanced by attenuated metabolic acidosis following bicarbonate (BIC) supplementation. This study evaluated the dose of BIC needed to eliminate the decrease in plasma pH during maximal ergometer rowing and assessed the ...
Henning Bay Nielsen   +3 more
doaj   +1 more source

Exercise Heat Acclimation With Dehydration Does Not Affect Vascular and Cardiac Volumes or Systemic Hemodynamics During Endurance Exercise

open access: yesFrontiers in Physiology, 2021
Permissive dehydration during exercise heat acclimation (HA) may enhance hematological and cardiovascular adaptations and thus acute responses to prolonged exercise. However, the independent role of permissive dehydration on vascular and cardiac volumes,
Gavin Travers   +8 more
doaj   +1 more source

Atrial natriuretic factor (ANF) and renin-aldosterone in volume regulation of patients with cirrhosis [PDF]

open access: yes, 1989
The role of the atrial natriuretic factor and of the main counteracting sodium-retaining principle, the renin-aldosterone system, in acute volume regulation of cirrhosis of the liver has been investigated.
Anderson   +46 more
core   +1 more source

Calculated plasma volume status is associated with poor outcomes in acute ischemic stroke treated with endovascular treatment

open access: yesFrontiers in Neurology, 2023
Background and purposeThe impact of calculated plasma volume status (PVS) on the prognosis of acute ischemic stroke treated with endovascular treatment (EVT) remains undetermined.
Dixia Zhang   +6 more
doaj   +1 more source

Plasma volume variation across the menstrual cycle among healthy women of reproductive age: A prospective cohort study

open access: yesPhysiological Reports, 2020
Increases in reproductive hormones like estrogen, play an important role in the remarkable increases in plasma volume observed in pregnancy. Accurate estimates of plasma volume expansion during pregnancy depend on correctly timing and measuring plasma ...
Sixtus Aguree   +4 more
doaj   +1 more source

Relationship between Blood Volume, Blood Lactate Quantity, and Lactate Concentrations during Exercise

open access: yesMetabolites, 2023
We wanted to determine the influence of total blood volume (BV) and blood lactate quantity on lactate concentrations during incremental exercise. Twenty-six healthy, nonsmoking, heterogeneously trained females (27.5 ± 5.9 ys) performed an incremental ...
Janis Schierbauer   +4 more
doaj   +1 more source

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