Sequential modulation of cardiac autonomic control induced by cardiopulmonary and arterial baroreflex mechanisms

• Published in: Circulation (New York, N.Y.) Vol. 104; no. 24; pp. 2932 - 2937
• Main Authors: Furlan, R., Jacob, G., Palazzolo, L., Rimoldi, A., Diedrich, A., Harris, P. A., Porta, A., Malliani, A., Mosqueda-Garcia, R., Robertson, D.
• Format: Journal Article
• Language: English
• Published: Legacy CDMS Lippincott Williams & Wilkins 11.12.2001; American Heart Association, Inc
• Subjects: Adult; Aerospace Medicine; Arteries - physiology; Autonomic Nervous System - physiology; Baroreflex - physiology; Biological and medical sciences; Blood Pressure - physiology; Female; Fundamental and applied biological sciences. Psychology; Heart - innervation; Heart - physiology; Heart Rate - physiology; Hemodynamics. Rheology; Humans; Lower Body Negative Pressure - methods; Lung - physiology; Male; Respiratory Mechanics - physiology; Supine Position - physiology; Vertebrates: cardiovascular system; Human; Blood Pressure/physiology; Heart Rate/physiology; Supine Position/physiology; Clinical Trial; Lower Body Negative Pressure/methods; Non-Nasa Center; Heart/innervation/physiology; Respiratory Mechanics/physiology; Male; Controlled Clinical Trial; Lung/physiology; Nasa Discipline Regulatory Physiology; Arteries/physiology; Female; Adult; Autonomic Nervous System/physiology; Baroreflex/physiology; Heart rate; Baroreflex; Cardiopulmonary; Physiology; Circulatory system; Hemodynamics; Sympathetic nervous system; Artery; NASA Discipline Regulatory Physiology; Non-NASA Center

BACKGROUND: Nonhypotensive lower body negative pressure (LBNP) induces a reflex increase in forearm vascular resistance and muscle sympathetic neural discharge without affecting mean heart rate. We tested the hypothesis that a reflex change of the autonomic modulation of heartbeat might arise during...