Document Detail

Interactional influence of fatigue and task difficulty on cardiovascular response: Demonstrations involving an aerobic exercise challenge.
MedLine Citation:
PMID:  22681340     Owner:  NLM     Status:  Publisher    
Experiments were executed to provide new evidence relevant to the recent suggestion that fatigue should augment or retard cardiovascular response depending on the difficulty of the challenge at hand. Participants walked on a treadmill while wearing a vest fitted with 5 or 25 pounds of weight. Later, they mounted a recumbent stationary bicycle and were asked to pedal with the chance to earn a modest incentive if they attained a low or high cycling standard (i.e., if they met an easy or difficult cycling challenge). Analysis of CV responses during the cycling period indicated expected interactions for systolic blood pressure and heart rate. Whereas responses were stronger for the Heavy-Vest (i.e., high-fatigue) group when the standard was low, they were weaker for this group when the standard was high. Experiments 2 and 3 evaluated a nonfatigue interpretation of the main results and yielded findings that supported the fatigue interpretation.
Rex A Wright; Jin Joo Shim; Beverly K Hogan; Jessica Duncan; Casey Thomas
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-8
Journal Detail:
Title:  Psychophysiology     Volume:  -     ISSN:  1540-5958     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0142657     Medline TA:  Psychophysiology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Society for Psychophysiological Research.
Department of Psychology, University of North Texas, Denton, Texas, USA.
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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