| Preliminary evidence that exercise dependence is associated with blunted cardiac and cortisol reactions to acute psychological stress. | |
| | |
MedLine Citation:
|
PMID: 21145361 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Low or blunted cardiovascular and cortisol reactions to acute psychological stress have been shown to characterise those with a tobacco or alcohol dependency. The present study tested the hypothesis that exercise dependency would be similarly associated with blunted reactivity. Young female exercisers (N=219) were screened by questionnaire for exercise dependence. Ten women with probable exercise dependence and 10 non dependent controls were selected for laboratory stress testing. Cardiovascular activity and salivary cortisol were measured at rest and in response to a 10-min mental arithmetic stress task. The exercise dependent women showed blunted cardiac reactions to the stress task and blunted cortisol at 10, 20, and 30minute post stress exposure. These effects could not be accounted for in terms of group differences in stress task performance, nor could the cardiac effects be attributed to group differences in cardio-respiratory fitness. It would seem that low stress reactivity is characteristic of a wide range of dependencies, and is not confined to substance dependence. Our results offer further support for the hypothesis that blunted stress reactivity may be a peripheral marker of a central motivational dysregulation. |
| | |
Authors:
|
Jennifer L J Heaney; Annie T Ginty; Douglas Carroll; Anna C Phillips |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2010-12-8 |
Journal Detail:
|
Title: International journal of psychophysiology : official journal of the International Organization of Psychophysiology Volume: - ISSN: 1872-7697 ISO Abbreviation: - Publication Date: 2010 Dec |
Date Detail:
|
Created Date: 2011-1-3 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8406214 Medline TA: Int J Psychophysiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2010 Elsevier B.V. All rights reserved. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Trait self-focused attention, task difficulty, and effort-related cardiovascular reactivity.
Next Document: Oroxylin A increases BDNF production by activation of MAPK-CREB pathway in rat primary cortical neur...