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The autonomic and rate pressure product responses of tai chi practitioners.
MedLine Citation:
PMID:  22754878     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Spectral analysis of autonomic nervous system activity can provide insight into cardiovascular function. Rate pressure product is the parameter often targeted pharmacologically to decrease the incidence of myocardial events.
AIM: The purpose of this study was to investigate whether or not Tai Chi Chuan practitioners would demonstrate autonomic responses that would be more cardioprotective when compared to non-trained controls.
MATERIALS AND METHODS: This was a cross-sectional study that measured the autonomic responses and rate pressure product of 2 groups of subjects; a Tai Chi Chuan trained (n = 13) and non-trained sedentary controls (n = 13) at rest and during 2 stressor phases that simulated functional activities of daily living.
RESULTS: The Tai Chi group maintained a greater parasympathetic outflow at rest and during the isometric grip stressor phase (P<0.05). Sympathetic outflow, systolic blood pressure and rate pressure product were significantly lower in the Tai Chi group at rest, during the isometric grip and standing stressor phases (P<0.05).
CONCLUSION: Although a cause-and-effect relationship cannot be concluded in this study, the Tai Chi group was able to demonstrate efficiency of the myocardium with suppressed rate pressure product values and autonomic responses that favored parasympathetic outflow. This type of training may complement non-pharmacological anti-hypertensive therapy.
Authors:
Michael A Figueroa; Ronald E Demeersman; James Manning
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  North American journal of medical sciences     Volume:  4     ISSN:  1947-2714     ISO Abbreviation:  N Am J Med Sci     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-07-03     Completed Date:  2012-10-02     Revised Date:  2013-05-30    
Medline Journal Info:
Nlm Unique ID:  101521411     Medline TA:  N Am J Med Sci     Country:  India    
Other Details:
Languages:  eng     Pagination:  270-5     Citation Subset:  -    
Affiliation:
Department of Kinesiology, William Paterson University, Wayne, NJ, USA.
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