Active clinical trials for "Heart Diseases"

Moderate and heavy strength training exercise and the acute blood pressure rise in cardiac patient, how high?

The aim of this study is evaluate the clinical, hemodynamic and electrocardiographic responses during an inspiratory muscle training session during a single cardiopulmonary rehabilitation session program. An electrocardiogram will be continuously recorded and the heart rate (HR) and blood pressure (BP) will be evaluated before, during and immediately after a single inspiratory muscle training (IMT) session, consisting of two series of 15 cycles, with one-minute intervals between sets and an initial load of at least 30% of the initial maximal inspiratory pressure (MIP).

To determine whether there were differences in the prevalence and extent of atherosclerotic lesions in the coronaries and aortas between Alaskan natives and non-natives, and whether the extent of the lesions was related to omega-3 fatty acids in blood and tissues.

To acquire a better understanding of the spontaneous clinical behavior of paroxysmal tachycardia by studying epidemiologic features of symptomatic tachycardia patients.

To determine the role of environmental stressors in the development of hypertension in Black and white school-age children from hypertensive families.

To examine the relationships of obesity and fat patterning with morbidity and mortality in Black Americans.

To test the hypothesis that the incidence of coronary heart disease and cardiovascular mortality could be accurately predicted by the presence of coronary calcific deposits detected by cardiac fluoroscopy.

To examine the relationships among psychosocial factors and carotid atherosclerosis, myocardial ischemia, arrhythmias, and thrombosis.

To identify risk factors for idiopathic dilated cardiomyopathy and to examine prognostic factors over a follow-up period of two to three years.

To examine the relationship of obesity and body fat distribution to lipoprotein concentrations in members of the Strong Heart Study.