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Use of a novel smart heating sleeping bag to improve wearers’ local thermal comfort in the feet

Song, Wen Fang; Zhang, Cheng Jiao; Lai, Dan Dan; Wang, Fa Ming and Kuklane, Kalev LU (2016) In Scientific Reports 6.
Abstract
Previous studies have revealed that wearers had low skin temperatures and cold and pain sensations in the feet, when using sleeping bags under defined comfort and limit temperatures. To improve wearers’ local thermal comfort in the feet, a novel heating sleeping bag (i.e., MARHT) was developed by embedding two heating pads into the traditional sleeping bag (i.e., MARCON) in this region. Seven female and seven male volunteers underwent two tests on different days. Each test lasted for three hours and was performed in a climate chamber with a setting temperature deduced from EN 13537 (2012) (for females: comfort temperature of −0.4 °C, and for males: the limit temperature of −6.4 °C). MARHT was found to be effective in maintaining the toe... (More)
Previous studies have revealed that wearers had low skin temperatures and cold and pain sensations in the feet, when using sleeping bags under defined comfort and limit temperatures. To improve wearers’ local thermal comfort in the feet, a novel heating sleeping bag (i.e., MARHT) was developed by embedding two heating pads into the traditional sleeping bag (i.e., MARCON) in this region. Seven female and seven male volunteers underwent two tests on different days. Each test lasted for three hours and was performed in a climate chamber with a setting temperature deduced from EN 13537 (2012) (for females: comfort temperature of −0.4 °C, and for males: the limit temperature of −6.4 °C). MARHT was found to be effective in maintaining the toe and feet temperatures within the thermoneutral range for both sex groups compared to the linearly decreased temperatures in MARCON during the 3-hour exposure. In addition, wearing MARHT elevated the toe blood flow significantly for most females and all males. Thermal and comfort sensations showed a large improvement in feet and a small to moderate improvement in the whole body for both sex groups in MARHT. It was concluded that MARHT is effective in improving local thermal comfort in the feet. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
sleeping bag heating blood flow skin temperature thermal comfort
in
Scientific Reports
volume
6
publisher
Nature Publishing Group
external identifiers
  • pmid:26759077
  • wos:000369068100001
  • scopus:84954100549
ISSN
2045-2322
DOI
10.1038/srep19326
language
English
LU publication?
yes
id
52495638-7657-4c59-94b2-da1b5df97d7e (old id 8520051)
date added to LUP
2016-01-15 11:15:35
date last changed
2017-06-04 04:12:10
@article{52495638-7657-4c59-94b2-da1b5df97d7e,
  abstract     = {Previous studies have revealed that wearers had low skin temperatures and cold and pain sensations in the feet, when using sleeping bags under defined comfort and limit temperatures. To improve wearers’ local thermal comfort in the feet, a novel heating sleeping bag (i.e., MARHT) was developed by embedding two heating pads into the traditional sleeping bag (i.e., MARCON) in this region. Seven female and seven male volunteers underwent two tests on different days. Each test lasted for three hours and was performed in a climate chamber with a setting temperature deduced from EN 13537 (2012) (for females: comfort temperature of −0.4 °C, and for males: the limit temperature of −6.4 °C). MARHT was found to be effective in maintaining the toe and feet temperatures within the thermoneutral range for both sex groups compared to the linearly decreased temperatures in MARCON during the 3-hour exposure. In addition, wearing MARHT elevated the toe blood flow significantly for most females and all males. Thermal and comfort sensations showed a large improvement in feet and a small to moderate improvement in the whole body for both sex groups in MARHT. It was concluded that MARHT is effective in improving local thermal comfort in the feet.},
  articleno    = {19326},
  author       = {Song, Wen Fang and Zhang, Cheng Jiao and Lai, Dan Dan and Wang, Fa Ming and Kuklane, Kalev},
  issn         = {2045-2322},
  keyword      = {sleeping bag heating blood flow skin temperature thermal comfort},
  language     = {eng},
  publisher    = {Nature Publishing Group},
  series       = {Scientific Reports},
  title        = {Use of a novel smart heating sleeping bag to improve wearers’ local thermal comfort in the feet},
  url          = {http://dx.doi.org/10.1038/srep19326},
  volume       = {6},
  year         = {2016},
}