Document Detail


Increased cardiovascular reactivity to the cold pressor test is not associated with increased reactivity to isometric handgrip exercise.
MedLine Citation:
PMID:  19943060     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Individuals who respond with a rise of 15 mmHg or more in their systolic and/or diastolic blood pressure to a cold pressor test are called blood pressure hyperreactors. We examined whether hyperreactors (n = 8) showed greater reactivity of arterial stiffness, i.e., pulse wave velocity (PWV) and augmentation index normalized to a heart rate of 75 bpm (AIx@75), to the cold pressor test than normal reactors (n = 15), and whether the former showed larger cardiovascular responses to isometric handgrip exercise. The cold pressor test was performed following Hines-Brown's method, with subjects immersing their right hand in 4 degrees C water for 2 min. Isometric handgrip exercise was performed at 30% maximal voluntary contraction for 2 min. Comparison between hyperreactors and normal reactors by two-way ANOVA during cold pressor test revealed a group x time interaction for PWV and AIx@75 with a greater increase in hyperreactors. During isometric handgrip exercise, no group x time interactions were detected for all measurements. Blood pressure hyperreactors show larger cardiovascular responses to the cold pressor test, but not to isometric handgrip exercise in comparison to normal blood pressure reactors.
Authors:
Kayo Moriyama; Hirotoshi Ifuku
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2009-11-27
Journal Detail:
Title:  European journal of applied physiology     Volume:  108     ISSN:  1439-6327     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-02-15     Completed Date:  2010-04-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  837-43     Citation Subset:  IM    
Affiliation:
Department of Physical Education, Faculty of Education, Kumamoto University, 2-40-1 Kurokami, Kumamoto, 860-8555, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Pressure / physiology
Cardiovascular System / physiopathology*
Cold Temperature*
Exercise / physiology*
Female
Hand Strength / physiology*
Heart Rate / physiology
Humans
Isometric Contraction / physiology*
Male
Pulse
Stress, Physiological
Time Factors
Young Adult

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