Circadian changes in vascular sympathetic activity in ambulant subjects
| Autor: | Sergio Cerutti, Alberto Malliani, Simonetta Dell’Orto, Federico Lombardi, Elisa Gentile, Mauro Tinelli, M. Pagani, Raffaello Furlan, Wilma Crivellaro, Simona Piazza, Massimo Pagani |
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| Předmět: |
Blood pressure control
Adult Male medicine.medical_specialty Physiology Blood Pressure Internal medicine Internal Medicine medicine Humans Circadian rhythm Morning Vasomotor business.industry Sympathetic activity Blood Pressure Determination Middle Aged Circadian Rhythm Vasomotor System Blood pressure Cardiology Systolic arterial pressure Electrocardiography Ambulatory Female Blood pressure increase Cardiology and Cardiovascular Medicine business |
| Zdroj: | Scopus-Elsevier |
| Popis: | In 10 ambulant subjects we studied the circadian changes in sympathetic vasomotor control as assessed by the spectral power of the 0.1-Hz low-frequency component of systolic arterial pressure variability measured with a Millar phi 3F tip transducer. The low-frequency component was higher during the daytime, while the subjects were performing light physical activity, and lower during the night, thus paralleling the circadian systolic blood pressure pattern. However, the morning low-frequency rise preceded the blood pressure increase by about 3 h, suggesting that vasometer control and blood pressure control are at least partly related to different mechanisms. |
| Databáze: | OpenAIRE |
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