Document Detail


Physiological responses to prompt and sustained squatting. Measurement by systolic time intervals.
MedLine Citation:
PMID:  861099     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Ten healthy men, ages 22 to 35, were studied non-invasively standing (control), at the onset of squatting ('prompt squat'), and at two minutes of squatting. Squatting produced decreases in heart rate, isovolumic contraction time, pre-ejection period, and pulse transmission time from onset of depolarisation to the first heart sound, left ventricular ejection time, and the ejection time index. These results of systolic time intervals are consistent with the bradycardia and increased ventricular filling induced by squatting. Major changes from control measurements were found at the onset of squatting, showing the impact of prompt squat of left ventricular performance.
Authors:
V Q Lance; D H Spodick
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British heart journal     Volume:  39     ISSN:  0007-0769     ISO Abbreviation:  Br Heart J     Publication Date:  1977 May 
Date Detail:
Created Date:  1977-07-29     Completed Date:  1977-07-29     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0370634     Medline TA:  Br Heart J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  559-62     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Bradycardia
Heart / physiology*
Heart Function Tests / methods*
Heart Rate
Humans
Male
Physical Exertion*
Ventricular Function
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