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High-intensity intermittent exercise and cardiovascular and autonomic function.
MedLine Citation:
PMID:  23104677     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: The effect of 12 weeks of high-intensity intermittent exercise (HIIE) on cardiac, vascular, and autonomic function of young males was examined. METHODS: Thirty-eight young men with a BMI of 28.7 ± 3.1 kg m(-2) and age 24.9 ± 4.3 years were randomly assigned to either an HIIE or control group. The exercise group underwent HIIE three times per week, 20 min per session, for 12 weeks. Aerobic power and a range of cardiac, vascular, and autonomic measures were recorded before and after the exercise intervention. RESULTS: The exercise, compared to the control group, recorded a significant reduction in heart rate accompanied by an increase in stroke volume. For the exercise group forearm vasodilatory capacity was significantly enhanced, P < 0.05. Arterial stiffness, determined by pulse wave velocity and augmentation index, was also significantly improved, after the 12-week intervention. For the exercise group, heart period variability (low- and high-frequency power) and baroreceptor sensitivity were significantly increased. CONCLUSION: High-intensity intermittent exercise induced significant cardiac, vascular, and autonomic improvements after 12 weeks of training.
Authors:
Mehrdad Heydari; Yati N Boutcher; Stephen H Boutcher
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-29
Journal Detail:
Title:  Clinical autonomic research : official journal of the Clinical Autonomic Research Society     Volume:  -     ISSN:  1619-1560     ISO Abbreviation:  Clin. Auton. Res.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9106549     Medline TA:  Clin Auton Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, 2052, Australia, heydari.dvm@gmail.com.
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