Results 71 to 80 of about 12,125 (218)

Determinants of maximal oxygen uptake in highly trained females and males: a mechanistic study of sex differences using advanced invasive methods

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend The results from this study show that maximal cardiac output, stroke volume and leg blood flow are similar between highly trained females and males after normalisation to lean body mass (LBM). However, the 10% higher haemoglobin concentration ([Hb]) and arterial O2 content in males result in higher systemic and leg O2 delivery ...
Øyvind Skattebo   +11 more
wiley   +1 more source

Long‐term passive heat acclimation enhances maximal oxygen consumption via haematological and cardiac adaptation in endurance runners

open access: yesThe Journal of Physiology, EarlyView.
Abstract Figure Legend Endurance‐trained runners completed a 5‐week hot‐water‐immersion (HWI) intervention (≥40°C, 45 min, five sessions per week) and a training‐matched control period in a cross‐over design. HWI induced a 33 g increase in haemoglobin mass (Hbmass) and a 10 mL expansion in left‐ventricular end‐diastolic volume (LVEDV), resulting in a 2.
Elliott J. Jenkins   +7 more
wiley   +1 more source

Role of reactive oxygen species in mediating peripheral hypoxic vasodilation and sympathoexcitation at high altitude

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend High‐altitude acclimatisation increases muscle sympathetic nerve activity (MSNA) via activation of the arterial chemoreflex, pulmonary arterial baroreceptors and resetting of the sympathetic vascular baroreflex. However attempting to silence these mechanisms only partially normalises MSNA, implicating other contributory ...
Liam D. Corr   +15 more
wiley   +1 more source

Mechanisms reducing parasympathetic activity in chronic hypoxia

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Parasympathetic activity is reduced in chronic hypoxia, but the underlying mechanism(s) are unclear. Using β‐adrenergic blockade to isolate parasympathetic control of heart rate at sea level and after 9‐12 days at high altitude, we investigated whether (i) chemoreflex activation, (ii) increased pulmonary ventilation and/or (iii ...
Lauren E. Maier   +10 more
wiley   +1 more source

Is crystalloid cardioplegia a strong predictor of intra-operative hemodilution? [PDF]

open access: yes, 2014
Introduction: Complications due to hemodilution (hematocrit value less than 22%) after cardiopulmonary bypass inevitably resulted with significantly greater intensive care requirements, long hospital stays, more operative costs, and increased mortality ...
Gunday, Murat   +3 more
core   +1 more source

CHOICE OF THE TECHNIQUE FOR BLOOD LOSS REDUCTION IN THE RECONSTRUCTIVE ORAL SURGERY

open access: yesВестник анестезиологии и реаниматологии, 2018
Goal of the study: to define the most optimal technique for blood loss reduction during reconstructive surgeries in maxillofacilal area. Materials and methods.
A. Yu. Zaitsev   +2 more
doaj   +1 more source

Acute Normovolemic Hemodilution [PDF]

open access: yesVox Sanguinis, 1999
SUMMARYI Acute normovolemic hemodilution is a point of care method of autologous blood procurement. Acute hemodilution has several inherent advantages over preoperative autologous blood donation: it is inexpensive, does not require testing, and has none of the risks of administrative error or bacterial contamination related to stored blood.
openaire   +2 more sources

Prognostic Value of Perioperative Anemia in Neurosurgical‐Oncological Treatment of Spinal Metastases

open access: yesInternational Journal of Cancer, Volume 159, Issue 6, Page 1391-1400, 15 September 2026.
High perioperative morbidity in patients undergoing surgery for spinal metastases highlights the need to identify modifiable risk factors, particularly the underexplored role of anemia. This study assessed associations between perioperative hemoglobin levels and complications, recurrence, and mortality in patients treated surgically for spinal ...
Marija Janjic   +13 more
wiley   +1 more source

Effects of hemodilution on gastric and intestinal oxygenation [PDF]

open access: yes, 1989
To determine the effects of hemodilution on gastric and intestinal oxygenation, isolated segments of canine stomach and small bowel were perfused by a pressurized reservoir with blood at hematocrits of 40 and 20%. Arteriovenous O2 difference, blood flow,
A. P. Shepherd, G. L. Riedel, J. W. Kiel
core   +1 more source

Effects of fascial manipulation, vibration exercise, motor imagery, or neuro‐muscular electrical stimulation on the coagulation system: A pilot study

open access: yesPhysiological Reports
Available evidence suggests that various medical/rehabilitation treatments evoke multiple effects on blood hemostasis. It was therefore the aim of our study to examine whether fascial manipulation, vibration exercise, motor imagery, or neuro‐muscular ...
Gerhard Cvirn   +10 more
doaj   +1 more source

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