Document Detail

The relationship between exercise intensity and affective responses demystified: to crack the 40-year-old nut, replace the 40-year-old nutcracker!
MedLine Citation:
PMID:  18369689     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: A causal chain linking exercise intensity, affective responses (e.g., pleasure-displeasure), and adherence has long been suspected as a contributor to the public health problem of physical inactivity. However, progress in the investigation of this model has been limited, mainly due to inconsistent findings on the first link between exercise intensity and affective responses. PURPOSE: The purpose was to reexamine the intensity-affect relationship using a new methodological platform. METHODS: Thirty young adults (14 women and 16 men) participated in 15-min treadmill exercise sessions below, at, and above their ventilatory threshold. The innovative elements were the following: (a) Affect was assessed in terms of the dimensions of the circumplex model; (b) assessments were made repeatedly during and after exercise; (c) patterns of interindividual variability were examined; (d) intensity was determined in relation to the ventilatory threshold; and (e) hypotheses derived from the dual-mode model were tested. RESULTS: Intensity did not influence the positive changes from pre- to post-exercise, but it did influence the responses during exercise, with the intensity that exceeded the ventilatory threshold eliciting significant and relatively homogeneous decreases in pleasure. CONCLUSIONS: Exceeding the intensity of the ventilatory threshold appears to reduce pleasure, an effect that could negatively impact adherence.
Panteleimon Ekkekakis; Eric E Hall; Steven J Petruzzello
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Publication Detail:
Type:  Journal Article     Date:  2008-03-28
Journal Detail:
Title:  Annals of behavioral medicine : a publication of the Society of Behavioral Medicine     Volume:  35     ISSN:  1532-4796     ISO Abbreviation:  Ann Behav Med     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-04-17     Completed Date:  2008-07-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8510246     Medline TA:  Ann Behav Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  136-49     Citation Subset:  IM    
Department of Kinesiology, Iowa State University, 253 Barbara E. Forker Building, Ames, IA 50011, USA.
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MeSH Terms
Affect / physiology*
Anaerobic Threshold / physiology*
Arousal / physiology
Carbon Dioxide / physiology
Exercise / physiology*
Exercise Test
Heart Rate / physiology
Lactic Acid / blood
Oxygen / physiology
Reference Values
Reg. No./Substance:
124-38-9/Carbon Dioxide; 50-21-5/Lactic Acid; 7782-44-7/Oxygen

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