Power spectrum analysis of heart rate fluctuation: a quantitative probe of beat-to-beat cardiovascular control.
Science
; 213(4504): 220-2, 1981 Jul 10.
Article
em En
| MEDLINE
| ID: mdl-6166045
ABSTRACT
Power spectrum analysis of heart rate fluctuations provides a quantitative noninvasive means of assessing the functioning of the short-term cardiovascular control systems. We show that sympathetic and parasympathetic nervous activity make frequency-specific contributions to the heart rate power spectrum, and that renin-angiotensin system activity strongly modulates the amplitude of the spectral peak located at 0.04 hertz. Our data therefore provide evidence that the renin-angiotensin system plays a significant role in short-term cardiovascular control in the time scale of seconds to minutes.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenômenos Fisiológicos Cardiovasculares
/
Frequência Cardíaca
Limite:
Animals
Idioma:
En
Revista:
Science
Ano de publicação:
1981
Tipo de documento:
Article