Publications by authors named "Fausto Stauffer Junqueira de Souza"

Article Synopsis
  • - The study compares how pulmonary oxygen uptake (VO2p), muscle deoxygenation ([HHb]), and microvascular oxygen delivery (QOmv) differ between heart failure patients with reduced ejection fraction (HFrEF) and those with preserved ejection fraction (HFpEF).
  • - HFrEF patients showed significantly slower VO2 kinetics, quicker muscle deoxygenation responses, and higher microvascular oxygen delivery compared to HFpEF patients, along with a shorter time to exercise intolerance.
  • - The analysis revealed that higher body fat negatively affects oxygen diffusion and exercise performance, while increased lean muscle correlates positively with better oxygen uptake and muscle oxygenation in HFrEF patients.
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Background: Spirometry is underused in heart failure (HF) and the extent to which each defect associates with exercise capacity and prognosis is unclear.

Objective: To determine the distinct relationship of continuous %predicted FVC (ppFVC) and FEV1/FVC with: 1) maximal inspiratory pressure (MIP), left ventricular ejection fraction (LVEF), exercise performance; and 2) prognosis for the composite of cardiovascular death, heart transplantation or left ventricular assist device implant.

Methods: A cohort of 111 HF participants (AHA stages C/D) without diagnosed pneumopathy, spirometry, manovacuometry and maximum cardiopulmonary test.

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Recent literature suggests that resistance training (RT) improves peak oxygen uptake ([Formula: see text] peak), similarly to aerobic exercise (AE) in patients with heart failure (HF), but its effect on cardiac remodeling is controversial. Thus, we examined the effects of RT and AE on [Formula: see text] peak and cardiac remodeling in patients with heart failure (HF) via a systematic review and meta-analysis. MEDLINE, EMBASE, Cochrane Library and CINAHL, AMEDEO and PEDro databases search were extracted study characteristics, exercise type, and ventricular outcomes.

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