Document Detail


"Which sweater to choose in the cold: knitted or fleece".
MedLine Citation:
PMID:  7857479     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of the present study was to investigate the influence of two common wool sweaters in a clothing ensemble on sweat production, sweat accumulation and sweat distribution in the clothing ensemble, as well as on other thermoregulatory responses together with comfort of man. A further aim was to investigate the influence of the two different sweaters on the temperature and the humidity gradient through the clothing ensemble in order to describe the different avenues and forms of heat exchange. Thick woolen middle layer sweaters manufactured in two different constructions, fleece and knitted, were tested as part of a 3-layer clothing system. The test was performed on eight male subjects (Ta = 10 degrees C, RH = 85%, Va < 0.1 m/s), and comprised a twice repeated bout of 40-min cycle exercise followed by 20 min rest. Skin temperatures, rectal temperature, weight loss and humidity near the skin and in the clothing layers were recorded during the test. Total changes in body and clothing weight were measured separately. Furthermore, subjective ratings on thermal comfort and on sensation of temperature and humidity were collected. The results demonstrated that there were no significant physiological and subjective differences when the two sweaters were worn, apart from higher sweat production and accumulation when the knitted sweater was used. It is assumed that this is a result of a larger thickness rather than different construction. Choosing the knitted sweater or the fleece wool sweater for work in an ambient temperature of 10 degrees C will be of minimal significance in practice. However, a sweater with more sweat accumulated will be heavier and this reduces the air layer between the garments, decreasing the clothing ensemble's insulation value.
Authors:
M K Bakkevig; R Nielsen
Related Documents :
8929589 - Responses of sweating and body temperature to sinusoidal exercise in physically trained...
12706749 - Role of environmental stress in the physiological response to chemical toxicants.
3416859 - Finger vasodilation correlates better with tympanic than esophageal temperature.
16075299 - Human temperature regulation during cycling with moderate leg ischaemia.
2583139 - Thermoregulatory responses of firemen to exercise in the heat.
8817129 - Physiological and subjective responses to thermal transients of exercising subjects dre...
17478409 - Using internet and mobile phone technology to deliver an automated physical activity pr...
17518959 - Comparison of surface electromyographic (semg) activity of submental muscles between th...
11760269 - Exercise behavior among female occupational health nurses. influence of self efficacy, ...
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Arctic medical research     Volume:  53     ISSN:  0782-226X     ISO Abbreviation:  Arctic Med Res     Publication Date:  1994 Oct 
Date Detail:
Created Date:  1995-03-23     Completed Date:  1995-03-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8602204     Medline TA:  Arctic Med Res     Country:  FINLAND    
Other Details:
Languages:  eng     Pagination:  200-9     Citation Subset:  IM    
Affiliation:
SINTEF UNIMED, Section for Extreme Work Environment, Trondheim, Norway.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Analysis of Variance
Animals
Cold Climate*
Humans
Male
Protective Clothing*
Sweating
Wool

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


Previous Document:  Would a helmet law for snowmobile riders reduce head injuries?
Next Document:  Genitourinary tuberculosis: the importance of early diagnosis and management. Case presentation.