Document Detail


Diurnal variations in vagal and sympathetic cardiac control.
MedLine Citation:
PMID:  2316678     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To investigate the diurnal variation in autonomic cardiac control, the magnitudes of the power spectral components of supine and standing heart rate variability were measured during controlled respiration (15 breaths/min). Examination was performed hourly between 0700 and 2300 h in eight male subjects whose activities and food intake were controlled for 24 h in the laboratory. The respiratory component (0.25 Hz) was greater in the morning than in the late afternoon (P less than 0.05) and decreased 30 min after food intake (P less than 0.01) in the supine position, but it was unaffected by the time of day or food intake while in the standing position. The Mayer wave component (0.03-0.15 Hz) did not change with the time of day, but it increased 90 min after food intake in both supine and standing positions (P less than 0.01 and P less than 0.05, respectively). These data suggest that supine vagal cardiac control during the waking period increases in the morning and decreases 30 min after food intake and that sympathetic cardiac control increases 90 min after food intake.
Authors:
J Hayano; Y Sakakibara; M Yamada; T Kamiya; T Fujinami; K Yokoyama; Y Watanabe; K Takata
Related Documents :
12691178 - Recent advances in the physiology of eating.
24215708 - Survey of food safety practices on small to medium-sized farms and in farmers markets.
22860578 - Rapid determination of sugar level in snack products using infrared spectroscopy.
22747078 - Determination of antioxidant content and antioxidant activity in foods using infrared s...
23433378 - A survey of food allergen control practices in the u.s. food industry.
7654108 - Anaphylaxis. a review of 266 cases.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of physiology     Volume:  258     ISSN:  0002-9513     ISO Abbreviation:  Am. J. Physiol.     Publication Date:  1990 Mar 
Date Detail:
Created Date:  1990-04-23     Completed Date:  1990-04-23     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370511     Medline TA:  Am J Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  H642-6     Citation Subset:  IM    
Affiliation:
Third Department of Internal Medicine, Nagoya City University Medical School, Aichi, Japan.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Blood Pressure
Circadian Rhythm*
Diastole
Eating / physiology
Heart Conduction System / physiology*
Heart Rate
Humans
Male
Respiration
Spectrum Analysis / methods
Supination
Sympathetic Nervous System / physiology*
Systole
Time Factors
Vagus Nerve / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Sepsis-induced diastolic dysfunction in chronic canine peritonitis.
Next Document:  Heparinase treatment suggests a role for the endothelial cell glycocalyx in regulation of capillary ...