Autonomic Mechanisms in Hemodynamic Responses to Isometric Exercise
نویسندگان
چکیده
منابع مشابه
Regular physical exercise improves cardiac autonomic and muscle vasodilatory responses to isometric exercise in healthy elderly
The objective of this study was to evaluate cardiac autonomic control and muscle vasodilation response during isometric exercise in sedentary and physically active older adults. Twenty healthy participants, 10 sedentary and 10 physically active older adults, were evaluated and paired by gender, age, and body mass index. Sympathetic and parasympathetic cardiac activity (spectral and symbolic hea...
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The time course of cardiocirculatory responses to different levels of isometric handgrip (IHG) in sitting position were studied noninvasively in normal males and compared to supine IHG results in the same subjects. Control Comparisons. Resting postural differences were as expected: sitting heart rates (HR), preejection phase (PEP) and PEP/LVET were higher while left ventricular ejection time (L...
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Ana Márcia dos Santos António, Marco Aurélio Cardoso, Joice A. T. do Amaral, Luiz Carlos de Abreu, Vitor E. Valenti I UNESP Universidade Estadual Paulista, Faculdade de Ciência e Tecnologia, Programa de Pós-Graduação em Fisioterapia, Presidente Prudente, SP, Brazil II UNESP Universidade Estadual Paulista, Faculdade de Ciências, Departamento de Fisioterapia e Terapia Ocupacional, Marilia, SP, Br...
متن کاملSympathoadrenergic mechanisms in reduced hemodynamic stress responses after exercise.
PURPOSE This study examines the acute effects of moderate aerobic exercise on 1) hemodynamic and sympathetic activity during behavioral stress and 2) beta-adrenergic receptor responsivity in a biracial sample of 24 sedentary adults. METHODS Before and after exercise, blood pressure (BP), impedance-derived cardiovascular measures, and plasma norepinephrine (NE) and epinephrine (EPI) were asses...
متن کاملHemodynamic responses to an isometric handgrip training protocol.
BACKGROUND In the past, isometric exercises were proscribed for heart disease. However, recent evidence suggests that an isometric handgrip training (IHT) protocol - four sets of two minutes at 30% of maximum strength - produces favorable effects on the autonomic modulation and reduces resting systolic (SBP) and diastolic (DBP) blood pressure. OBJECTIVE Aiming at obtaining support for broad c...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1974
ISSN: 0021-9738
DOI: 10.1172/jci107731