Document Detail


Combined effects of fabric air permeability and moisture absorption on clothing microclimate and subjective sensation during intermittent exercise at 27 degrees C.
MedLine Citation:
PMID:  10424185     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present paper aimed at determining the combined effects of two different levels of air permeability and moisture absorption, in terms of clothing microclimate and subjective sensation, in resting and exercising subjects at an ambient temperature of 27 degrees C, a relative humidity of 50% and an air velocity of 0.14 m s-1. Three kinds of clothing ensemble were investigated: (1) polyester clothing with low moisture absorption and low air permeability (A), (2) polyester clothing with low moisture absorption and high air permeability (B), and (3) cotton clothing with high moisture absorption and high air permeability (C). The subjects exercised for 10 min on a cycle ergometer at an intensity of 30% maximal oxygen uptake and then had a 10 min rest. This sequence was repeated four times. The main findings are summarized as follows: (1) The clothing microclimate humidity in the back area was significantly higher in A than in B, and in C than in B. (2) The clothing microclimate temperature in the chest area was significantly higher in B than in A, and in B than in C. (3) The clothing microclimate temperature in the back area was significantly higher in C than in B. (4) The clothing surface temperature was significantly higher in C than in B. (5) Although the positive relationships between the microclimate humidity and forearm sweat rate was significantly confirmed in all three kinds of clothing, the microclimate humidity at chest for the same sweat rate was lower in C than in A and B. (6) Although the positive relationships between subjective sensation and forearm sweat rates were significantly confirmed in all three kinds of clothing, the subjective discomfort seemed to be reduced more effectively in C than in A and B for the same sweat rate. These results were discussed in terms of thermal physiology and combined effects of air permeability and moisture absorbency of the fabrics.
Authors:
M Ha; H Tokura; Y Yanai; T Moriyama; N Tsuchiya
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Ergonomics     Volume:  42     ISSN:  0014-0139     ISO Abbreviation:  Ergonomics     Publication Date:  1999 Jul 
Date Detail:
Created Date:  1999-08-10     Completed Date:  1999-08-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0373220     Medline TA:  Ergonomics     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  964-79     Citation Subset:  IM; S    
Affiliation:
Department of Environmental Health, Nara Women's University, Japan.
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MeSH Terms
Descriptor/Qualifier:
Absorption
Adult
Analysis of Variance
Clothing*
Exercise*
Female
Gossypium*
Humans
Microclimate*
Permeability
Polyesters*
Sensation
Chemical
Reg. No./Substance:
0/Polyesters

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


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