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Thermal impact of steel toe cap in footwear

Kuklane, Kalev LU and Holmér, Ingvar LU (1997) Protective clothing: the Fifth Scandinavian Symposium on Protective Clothing (NOKOBETEF 5) In [Host publication title missing] p.190-193
Abstract
This study investigated cold weather safety footwear and the possible thermal effects of steel toe caps in footwear. Two boot models were manufactured and used in two variants - with (As and Ws) and without (An and Wn) steel toe cap. The boot insulation was measured with an artificial, heated foot (AHF). Experiments with 6 male subjects with boots Ws and Wn consisted of sitting for 60 minutes at -10°C and 30 minutes recovery at room temperature.

There were no statistically significant differences between the insulation values of boots As and An, but the differences were statistically significant for another model showing higher insulation values for the Wn. No differences due to insulation could be pointed out from measurements on... (More)
This study investigated cold weather safety footwear and the possible thermal effects of steel toe caps in footwear. Two boot models were manufactured and used in two variants - with (As and Ws) and without (An and Wn) steel toe cap. The boot insulation was measured with an artificial, heated foot (AHF). Experiments with 6 male subjects with boots Ws and Wn consisted of sitting for 60 minutes at -10°C and 30 minutes recovery at room temperature.

There were no statistically significant differences between the insulation values of boots As and An, but the differences were statistically significant for another model showing higher insulation values for the Wn. No differences due to insulation could be pointed out from measurements on subjects.

Statistically significant differences were found for both models regarding the rate of change of heat loss from AHF when its location was changed from cold (-10 °C) to warm (+20 °C). The decrease of heat loss from AHF depended on the rate of a temperature change of the boots. The results showed that a faster change in heat loss from AHF occurred for boots without steel toe caps. Data from subjects seemed to confirm this by a somewhat faster rise in toe skin temperatures after cold exposure in boots without steel toe caps. This effect was related to the higher mass and heat contents of the boots with steel toe cap. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
editor
Nielsen, Ruth; Borg, Carsten; and
pages
4 pages
publisher
NOKOBETEF
conference name
Protective clothing: the Fifth Scandinavian Symposium on Protective Clothing (NOKOBETEF 5)
ISBN
87-89895-17-7
language
English
LU publication?
no
id
eaf32571-180a-465f-873c-f48037533c6e (old id 635633)
date added to LUP
2008-09-24 12:40:43
date last changed
2016-04-16 10:33:10
@inproceedings{eaf32571-180a-465f-873c-f48037533c6e,
  abstract     = {This study investigated cold weather safety footwear and the possible thermal effects of steel toe caps in footwear. Two boot models were manufactured and used in two variants - with (As and Ws) and without (An and Wn) steel toe cap. The boot insulation was measured with an artificial, heated foot (AHF). Experiments with 6 male subjects with boots Ws and Wn consisted of sitting for 60 minutes at -10°C and 30 minutes recovery at room temperature.<br/><br>
There were no statistically significant differences between the insulation values of boots As and An, but the differences were statistically significant for another model showing higher insulation values for the Wn. No differences due to insulation could be pointed out from measurements on subjects.<br/><br>
Statistically significant differences were found for both models regarding the rate of change of heat loss from AHF when its location was changed from cold (-10 °C) to warm (+20 °C). The decrease of heat loss from AHF depended on the rate of a temperature change of the boots. The results showed that a faster change in heat loss from AHF occurred for boots without steel toe caps. Data from subjects seemed to confirm this by a somewhat faster rise in toe skin temperatures after cold exposure in boots without steel toe caps. This effect was related to the higher mass and heat contents of the boots with steel toe cap.},
  author       = {Kuklane, Kalev and Holmér, Ingvar},
  booktitle    = {[Host publication title missing]},
  editor       = {Nielsen, Ruth and Borg, Carsten},
  isbn         = {87-89895-17-7},
  language     = {eng},
  pages        = {190--193},
  publisher    = {NOKOBETEF},
  title        = {Thermal impact of steel toe cap in footwear},
  year         = {1997},
}