| Heart rate variability, QT variability, and electrodermal activity during exercise. | |
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MedLine Citation:
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PMID: 19952826 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: Various measures of autonomic function have been developed, and their applicability and significance during exercise are controversial. METHODS: Physiological data were therefore obtained from 23 sport students before, during, and after exercise. Measures of R-R interval variability, QT variability index (QTvi), and electrodermal activity (EDA) were calculated. We applied an incremental protocol applying 70%, 85%, 100%, and 110% of the individual anaerobic threshold for standardized comparison. RESULTS: Although HR increased stepwise, parasympathetic parameters such as the root mean square of successive differences were not different during exercise and do not mirror autonomic function satisfactorily. Similar results were observed with the approximate entropy of R-R intervals (ApEnRR). In contrast, the increase in sympathetic activity was well reflected in the EDA, QTvi, and ApEn of the QT interval (ApEnQT)/ApEnRR ratio. CONCLUSION: We suggest that linear and nonlinear parameters of R-R variability do not adequately reflect vagal modulation. Sympathetic function can be assessed by EDA, QTvi, or ApEnQT/ApEnRR ratio. |
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Authors:
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Silke Boettger; Christian Puta; Vikram K Yeragani; Lars Donath; Hans-Josef M?ller; Holger H W Gabriel; Karl-J?rgen B?r |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 42 ISSN: 1530-0315 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-02-19 Completed Date: 2010-05-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: United States |
Other Details:
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Languages: eng Pagination: 443-8 Citation Subset: IM; S |
Affiliation:
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Department of Psychiatry and Psychotherapy, University Hospital, Jena, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Analysis of Variance Athletes Autonomic Nervous System / physiology Exercise / physiology* Female Galvanic Skin Response / physiology* Heart Conduction System / physiology* Heart Rate / physiology* Humans Male Young Adult |
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