Raquel Britto

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INTRODUCTION Patients with chronic obstructive pulmonary disease (COPD) report dyspnea when performing activities of daily living (ADLs) with elevated upper limbs. To elucidate the determinants of dyspnea, it is important to study the changes in the respiratory pattern of these patients and the electromyographic activity of their accessory muscles of(More)
In this study, we evaluated the effect produced by lateral ventricle (intracerebroventricular, I.C.V.) infusion of the selective angiotensin (Ang)-(1-7) antagonist, D-Ala7-Ang-(1-7) (A-779), in the modulation of the baroreflex control of heart rate in two-kidney, one clip renovascular hypertensive rats (2K1C) treated with the angiotensin-converting enzyme(More)
BACKGROUND It is important to include large sample sizes and different factors that influence the six-minute walking distance (6MWD) in order to propose reference equations for the six-minute walking test (6 MWT). OBJECTIVE To evaluate the influence of anthropometric, demographic, and physiologic variables on the 6 MWD of healthy subjects from different(More)
The objective of the present study was to evaluate breathing pattern, thoracoabdominal motion and muscular activity during three breathing exercises: diaphragmatic breathing (DB), flow-oriented (Triflo II) incentive spirometry and volume-oriented (Voldyne) incentive spirometry. Seventeen healthy subjects (12 females, 5 males) aged 23 +/- 5 years (mean +/-(More)
AIMS The effects of exercise training in chronic heart failure are well established, however, they have not been evaluated in Chagas cardiomyopathy (ChC). We sought to determine the effects of exercise training on functional capacity, health-related quality of life (HQoL), and brain natriuretic peptide (BNP) levels in patients with ChC. METHODS AND(More)
BACKGROUND Optoelectronic plethysmography (OEP) is an innovative method of indirect measurement of pulmonary ventilation, capable of breath-by-breath, three-dimensional, real time assessment of absolute lung volumes and their variations in the three compartments of the chest wall (pulmonary rib cage, abdominal rib cage, and abdomen). OEP allows the(More)
BACKGROUND Respiratory muscle strength is influenced by aging. OBJECTIVES To assess, in a healthy elderly population, the influence of physical activity and functional performance on the pulmonary function parameters, on respiratory muscle strength and on coughing. METHODS Observation study that sixty one elderly with age equal or more than 60 years(More)
BACKGROUND The identification of breathing patterns in healthy elderly individuals and changes in the respiratory system related to the normal aging process is important to detect and prevent respiratory dysfunction. OBJECTIVES To assess and compare respiratory function between adults and elderly individuals according to baseline conditions. METHODS(More)
BACKGROUND Obesity is a worldwide health problem that may also induce respiratory dysfunction. Literature linking weight loss and maximum respiratory pressures is inconclusive. OBJECTIVE To evaluate longitudinally the maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP) of morbidly obese individuals before and after gastric bypass(More)
OBJECTIVES To evaluate the quality of life (QOL) of patients with chronic venous disease (CVD) and to analyze the relationship between QOL and disease severity. METHODS This was a cross-sectional study with a convenience sample of 50 participants with a diagnosis of CVD. The participants were classified according to disease severity using the CEAP(More)