Document Detail

Effect of graded head-up tilt on parasympathetic reactivity.
MedLine Citation:
PMID:  9055099     Owner:  NLM     Status:  MEDLINE    
Thirteen healthy subjects were tested for parasympathetic reactivity during head-up tilt and reversal of the tilt. Head-up tilt (70 degrees) resulted in significant increase in baseline heart rate and diastolic blood pressure. Head-up tilt also led to increased parasympathetic reactivity as measured by Valsalva manoeuvre and hand grip test. Heart rate response to deep breathing test did not change. The reversal of the tilt led to returning of heart responses to original values. Responses indicate towards enhanced parasympathetic reactivity during head-up tilt position.
N Jahan; K K Deepak; N Kaushal; B H Paudel
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Indian journal of physiology and pharmacology     Volume:  40     ISSN:  0019-5499     ISO Abbreviation:  Indian J. Physiol. Pharmacol.     Publication Date:  1996 Oct 
Date Detail:
Created Date:  1997-05-09     Completed Date:  1997-05-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374707     Medline TA:  Indian J Physiol Pharmacol     Country:  INDIA    
Other Details:
Languages:  eng     Pagination:  309-17     Citation Subset:  IM; S    
Department of Physiology, All India Institute of Medical Sciences, New Delhi.
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MeSH Terms
Blood Pressure / physiology
Exercise / physiology
Heart Rate / physiology
Parasympathetic Nervous System / physiology*
Posture / physiology*
Respiration / physiology
Tilt-Table Test
Valsalva Maneuver

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