Document Detail


Salivary cortisol response to a 30 mn submaximal test adjusted to a constant heart rate.
MedLine Citation:
PMID:  9190126     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The aim of this study was to analyse the salivary cortisol variations during a 30 min sub-maximal exercise, the load being fitted so that the heart rate remains constant at 170 +/- 4 bpm. METHODS: Tests were conducted at 10 a.m. precisely (in order to avoid circadian variations), and cortisol values were recorded every 5 mn by means of a sampling collector over 40 mn), (30 mn bout + 10 mn post-exercise) and then at 30 mn, 1 h 30 mn and 5 h following the end of the exercise. Test values were compared to reference values, (average cortisol resting levels obtained at comparable hours on a previous day). Nine sport-students, (5 boys, 4 girls) entered the study. RESULTS: The cortisol level presented a significant increase from the first step of the exercise and then, as opposed to an exercise where a constant load is applied, it did not keep increasing but remained steady until the end of the test. After stopping, a new significant increase surprisingly appeared; the values then dropped to reference levels, but they were still higher 1h 30 mn after exercise had stopped. CONCLUSIONS: It appears that when the perceived stress of the body reaches an equilibrium, as controlled by monitoring the heart rate, cortisol levels quickly rise to a steady state, about two folds higher than resting values in our experimental conditions.
Authors:
G Lac; D Pantelidis; A Robert
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of sports medicine and physical fitness     Volume:  37     ISSN:  0022-4707     ISO Abbreviation:  J Sports Med Phys Fitness     Publication Date:  1997 Mar 
Date Detail:
Created Date:  1997-07-10     Completed Date:  1997-07-10     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376337     Medline TA:  J Sports Med Phys Fitness     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  56-60     Citation Subset:  IM    
Affiliation:
UFR STAPS BP 104 Université Baise Pascal, Clermont Ferrand, France.
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MeSH Terms
Descriptor/Qualifier:
Adult
Circadian Rhythm
Exercise Test
Female
Follow-Up Studies
Heart Rate / physiology*
Humans
Hydrocortisone / analysis*,  biosynthesis
Male
Oxygen Consumption / physiology
Physical Exertion / physiology*
Reference Values
Saliva / chemistry*,  metabolism
Sports / physiology
Stress, Physiological / physiopathology
Chemical
Reg. No./Substance:
50-23-7/Hydrocortisone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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