Document Detail

Effect of deception and expected exercise duration on psychological and physiological variables during treadmill running and cycling.
MedLine Citation:
PMID:  22220852     Owner:  NLM     Status:  Publisher    
Effects of deception and expected duration on the rating of perceived exertion (RPE), affect, and heart rate (HR) were examined during treadmill (n = 12) and cycling (n = 8) exercise. Participants completed three conditions: (1) 20 MIN-exercise for 20 min, stop after 20 min; (2) 10 MIN-exercise for 10 min, in 10th min be told to exercise for 10 min more; and (3) UNKNOWN-no information about duration. Intensities were set at 70% and 65% of peak oxygen uptake for treadmill and cycling, respectively. RPE increased (treadmill) and affect decreased (treadmill and cycling) in the absence of changes in HR and oxygen uptake in the 10 MIN conditions. These changes suggest a disruption to a feed-forward/feedback system. The lower HR in the UNKNOWN conditions suggests a subconscious attempt to conserve energy when the duration of the exercise task is unknown.
Roger Eston; Ralph Stansfield; Paul Westoby; Gaynor Parfitt
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-3
Journal Detail:
Title:  Psychophysiology     Volume:  -     ISSN:  1540-5958     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-6     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 © 2011 Society for Psychophysiological Research.
School of Health Sciences, University of South Australia, Adelaide, Australia; School of Sport and Health Sciences, University of Exeter, Exeter, UK.
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