ABSTRACT Objective: To evaluate autonomic modulation in individuals with COPD, compared with healthy controls, via recurrence plots (RPs) and linear heart rate variability (HRV) indices. Methods: We analyzed data on 74 volunteers, who were divided into two groups: COPD (n = 43) and control (n = 31). Fo...
Sistema Nervioso Autónomo/fisiopatología,
Estudios de Casos y Controles,
Volumen Espiratorio Forzado/fisiología,
Frecuencia Cardíaca/fisiología,
Estudios Prospectivos,
Enfermedad Pulmonar Obstructiva Crónica/fisiopatología,
Valores de Referencia,
Espirometría,
Estadísticas no Paramétricas,
Factores de Tiempo,
Capacidad Vital/fisiología
Background: The evaluation of cardiorespiratory fitness (RCC) using maximal or peak oxygen consumption (VO2), requires a high level of effort in obese patients. We propose a method to evaluate RCC using constant and moderate loads, called VO2 kinetics (tau). Aim: To determine the relationship between ta...
Abstract Purpose: To investigate the influence of dexmedetomidine on myocardial ischemia-reperfusion injury (IRI) in rabbits. Methods: Twenty-four New Zealand white rabbits were randomly divided into two equal-sized groups: IRI group (group IR) and dexmedetomidine group (group D). Systolic blood pres...
Agonistas de Receptores Adrenérgicos alfa 2/farmacología,
Dexmedetomidina/farmacología,
Modelos Animales de Enfermedad,
Endotelina-1/sangre,
Frecuencia Cardíaca/efectos de los fármacos,
Hemodinámica,
Daño por Reperfusión Miocárdica/fisiopatología,
Daño por Reperfusión Miocárdica/prevención & control,
Fenómeno de no Reflujo/fisiopatología,
Factor de Activación Plaquetaria/análisis,
Distribución Aleatoria,
Valores de Referencia,
Reproducibilidad de los Resultados,
Tromboxano A2/sangre,
Resultado del Tratamiento
Abstract Background: Maintenance of orthostatism requires the interaction of autonomic and muscle responses for an efficient postural control, to minimize body motion and facilitate venous return in a common type of syncope called neurocardiogenic syncope (NCS). Muscle activity in standing position may ...
OBJECTIVES: To describe external training load and internal training load through sets of a single session of high-intensity interval training (HIIT) body work. METHODS: Twenty male individuals (24±3 years) performed a HIIT body work protocol consisting of a single bout of exercise with 1:1 stimuli. Th...
OBJECTIVE: The present study analyzed blood pressure responses after a single session of isometric handgrip exercise performed with different volumes and intensities by patients with hypertension. METHODS: This randomized crossover trial submitted 12 hypertensive patients (58±5 years old) to four isome...
Family history of hypertension is an important predictive factor for hypertension and is associated with hemodynamic and autonomic abnormalities. Previous studies reported that strength training might reduce arterial blood pressure (AP), as well as improve heart rate variability (HRV). However, the benef...
Edad de Inicio,
Análisis de Varianza,
Presión Arterial/fisiología,
Estudios Transversales,
Frecuencia Cardíaca/fisiología,
Hipertensión/fisiopatología,
Hipertensión/prevención & control,
Reproducibilidad de los Resultados,
Entrenamiento de Fuerza/métodos,
Factores de Riesgo,
Conducta Sedentaria,
Encuestas y Cuestionarios,
Sistema Nervioso Simpático/fisiopatología
The objective of this study was to assess cardiovascular, respiratory, and metabolic responses during a commonly used dynamic leg press resistance exercise until exhaustion (TEx) at different intensities and compare with critical load (CL). This was a prospective, cross-sectional, controlled, and crossov...
Aim: We aimed to evaluate the effect of low and vigorous levels of physical activity in body composition, hemodynamics and autonomic modulation in subjects with Down syndrome (DS). METHODS: We evaluated 13 healthy subjects without DS (control group), 15 sedentary subjects with DS, (SED DS group), nine w...
Abstract A case of intraoperative awareness during ablation of pulmonary veins-one of the most widely used techniques in interventional cardiology-is discussed. An infusion of isoproterenol was administered following the ablation of ectopic foci. A few seconds after the infusion the patient experienced i...
Ablación por Catéter,
Anestésicos,
Cardiología,
Cardiólogos,
Despertar Intraoperatorio,
Frecuencia Cardíaca,
Gasto Cardíaco,
Isoproterenol,
Venas Pulmonares,
Ruscus,
Propofol
