Margarita Giménez

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42 normal male subjects from 19 to 27 years, are examined in conditions of field studies once a week for 9 weeks. At each session are measured: flow volume curves with determination of vital capacity (VC), forced expiratory volume in one second (FEV 1.0), peak flow (V peak), flows at 0.75, 0.50, 0.25 of VC (V 0.75 VC, V 0.50 VC, V 0.25 VC). Single breath(More)
The purpose of the present study was to examine both the specific and the transfer effects of a Square Wave Endurance Exercise Test (SWEET) and to investigate the determining factors of transfer effect. A control group (CG, n = 5) and 2 experimental groups were studied. Experimental groups completed 3 days/week a 45 min SWEET over 6 weeks, either with the(More)
The effects of exposure to simulated altitude on skeletal muscle and on the cardiocirculatory system rhave been studied on awake, conscious, dogs (16-39 kg) at rest and during moderate treadmill exercise at 15% incline. Measurements were obtained in Denver at a PB of 635 mm Hg and after 3 weeks of continuous exposure to a PB of 435 mm Hg using a hypobaric(More)
In assessing the effectiveness of lower-limb and upper-limb nonspecific physical training, we have considered 3 objectives in this study: (1) determination of clinical and functional actual state in patients with chronic airway obstruction (CAO), before and after training; (2) determination of the tests, level of work, and duration of the session training(More)
Net colonic K secretion (JKnet) is increased in rats and humans with chronic renal failure (CRF). To study whether transepithelial potential difference (PD), active transport forces and/or luminal K conductance play a role in this adaptation, experiments were performed in the colon of control, K-adapted, and CRF rats. Under basal conditions the PD in vivo(More)
Previous studies have shown that the intestinal excretion of potassium increases in patients with renal failure and serves to guard against severe potassium retention. It is not known, however, whether the rise in intestinal potassium excretion occurs because of an increase in intestinal potassium secretion or a reduction in potassium absorption. Therefore,(More)
PURPOSE To create a maximum tolerated 45-minute aerobic training program for patients with chronic obstructive pulmonary disease (COPD) and to compare its outcomes with those of commonly prescribed moderate exercise. DESIGN Prospective, randomized trial. SETTING A work physiology laboratory. PATIENTS AND METHODS The maximum exercise intensities that 7(More)
74 subjects of different ages: normal children, 19 boys (A) and 7 girls (C) aged between 11 and 15 years; asthmatic boys (n = 7, group B) and girls (n = 7, group D), with similar ages; normal male adult subjects (n = 10, group E) and pulmonary patients with restrictive (n = 8, group G) or obstructive (n = 16, group F) ventilatory impairment, were submitted(More)