Document Detail

The effect of two kinds of T-shirts on physiological and psychological thermal responses during exercise and recovery.
MedLine Citation:
PMID:  20427033     Owner:  NLM     Status:  In-Process    
The aim of this study was to investigate the physiological and psychological responses during and after high-intensity exercise in a warm and humid environment in subjects wearing shirts of different fabrics. Eight healthy men exercised on two separate occasions, in random order, wearing two types of long-sleeve T-shirt: one made of polyester (PES) and the other of cotton fabric (CT). They performed three 20 min exercise bouts, with 5 min rest between each, and then rested in a chair for 60 min to recover. The ambient temperature was 25 °C and relative humidity was 60%. The exercise comprised of treadmill running at 8 km/h at 1° grade. Rectal temperature, skin temperatures at eight sites, heart rate, T-shirt mass and ratings of thermal, clothing wettedness, and shivering/sweating sensation were measured before the experiment, during the 5 min rest period after each exercise bout, and during recovery. Nude body mass was measured before the experiment and during recovery. The physiological stress index showed that the exercise produced a state of very high heat stress. Compared with exercise wearing the CT shirt, exercise wearing the PES fabric produced a greater sweating efficiency and less clothing regain (i.e., less sweat retention), but thermophysiological and subjective sensations during the intermittent high-intensity exercise were similar for both fabrics. However, skin temperature returned to the pre-exercise level faster, and the thermal and rating of shivering/sweating sensation were lower after exercise in the warm and humid environment in subjects wearing PES than when wearing the more traditional CT fabric.
Marius Brazaitis; Sigitas Kamandulis; Albertas Skurvydas; Laura Daniusevičiūtė
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Publication Detail:
Type:  Journal Article     Date:  2010-04-28
Journal Detail:
Title:  Applied ergonomics     Volume:  42     ISSN:  1872-9126     ISO Abbreviation:  Appl Ergon     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-10-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0261412     Medline TA:  Appl Ergon     Country:  England    
Other Details:
Languages:  eng     Pagination:  46-51     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Department of Applied Physiology and Physiotherapy, Laboratory of Human Motorics, Lithuanian Academy of Physical Education, Sporto 6, LT-44221 Kaunas, Lithuania.
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