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Pain and thermal sensation in the cold: the effect of interval versus continuous exercise.
MedLine Citation:
PMID:  21082195     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Military and factory work often involves exposure to cold temperatures. With prolonged exposure, individuals report feeling cold and develop pain in their hands, both of which might be alleviated by endogenous heat production via exercise. The purpose of this study was to evaluate how interval (INT) and continuous (CONT) cycle ergometry alter thermal sensation, hand pain, mean finger temperature, and skin surface temperature gradient (forearm-finger) following immobility in moderate cold. Fourteen young men underwent two trials (each was three total hours in 5°C) consisting of a 90-min period of acute cold exposure (ACE), 30 min of exercise (INT or CONT), and a 60-min recovery period (REC). INT and CONT were isoenergetic, reflecting 50 ± 1% of each individual's VO(2) peak. All perceptual scales were significantly correlated during ACE (i.e., test-retest reliability). As expected, individuals felt colder and reported more hand pain during ACE, as compared to thermoneutral conditions. Relative to ACE, both INT and CONT increased mean finger temperature, which was associated with warmer thermal sensation and less hand pain. During REC in 5°C, individuals felt colder and reported more hand pain than during exercise. Although there were no perceptual differences between INT and CONT, moderate exercise in general can cause subjective feelings of warmth and less hand pain in people acutely exposed to moderate cold.
Authors:
Matthew D Muller; Sarah M Muller; Edward J Ryan; David M Bellar; Chul-Ho Kim; Ellen L Glickman
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Publication Detail:
Type:  Journal Article     Date:  2010-11-17
Journal Detail:
Title:  European journal of applied physiology     Volume:  111     ISSN:  1439-6327     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-05-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  979-87     Citation Subset:  IM    
Affiliation:
Exercise and Environmental Physiology Laboratory, Kent State University, Gym Annex 167, Kent, OH, 44242, USA, mmuller1@kent.edu.
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