Abstract：
:The present study was conducted in order to evaluate whether physiological strain is alleviated by a new personal cooling system (CS) consisting of a layered vest and integrated blower that generate a flow of air. Twelve male volunteers were exposed to climatic conditions of 40 degrees C, 40%RH (40/40), and 35 degrees C, 60%RH (35/60) during a 115 min exercise routine, followed by 70 min resting recovery, while wearing a battle dress uniform (BDU) and a ballistic vest, with (COOL) or without (NOCOOL) CS. The CS was able to attenuate the physiological strain levels during exercise, when compared to identical exposures without the CS. Temperature elevation, (DeltaT (re)) after 100 min of exercise, was lower by 0.26 +/- 0.20 and 0.34 +/- 0.21 degrees C in 40/40 and 35/60, respectively, (p < 0.05). Mean skin temperature (T(sk)) was lower by 0.9 +/- 0.4 and 0.6 +/- 0.5 degrees C for 40/40 and 35/60, respectively. Heart rate (HR) was not significantly different for COOL versus NOCOOL for 40/40. At 35/60, HR was lower by 10 beats per min (bpm) (p < 0.05). Physiological strain index (PSI) was 9 and 21% lower for the 40/40 and 35/60, respectively, for COOL versus NOCOOL (p < 0.05). Heat storage (S) rates were 19 and 24% lower and sweat rates were 21 and 25% lower for the 40/40 and 35/60, respectively, for COOL versus NOCOOL (p < 0.05). However, the CS was not effective in alleviating physiological strain during resting recovery with no difference in T (re) cooling rate, S, or HR drop rate between groups over resting recovery periods. The CS tested in this study was found to be an effective tool for lowering physiological strain while exercising but not during resting recovery. Therefore, the CS should be further developed in order to achieve greater attenuation of the thermal strain during exercise and improve effectiveness during rest. Overall, it has the potential to be useful for both military and sports personnel.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Hadid A,Yanovich R,Erlich T,Khomenok G,Moran DSdoi
10.1007/s00421-008-0716-8subject
Has Abstractpub_date
2008-09-01 00:00:00pages
311-9issue
2eissn
1439-6319issn
1439-6327journal_volume
104pub_type
杂志文章abstract：:The thermal insulation properties of a military wet/cold protection glove of the German Bundeswehr were investigated using the thermophysiological simulation device CYBOR with a heated full-scale hand model. The aim of this study was the physiology related and more reliable estimation of a database for the thermal com...
journal_title：European journal of applied physiology
pub_type： 杂志文章
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更新日期：2008-09-01 00:00:00
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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更新日期：2002-04-01 00:00:00
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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更新日期：2015-05-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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更新日期：2017-06-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/PL00013788
更新日期：2000-01-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-013-2685-9
更新日期：2013-10-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2158-y
更新日期：2012-05-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s004210100505
更新日期：2001-11-01 00:00:00
abstract：:Hyperventilation prior to breath-hold diving increases the risk of syncope as a result of hypoxia. Recently, a number of cases of near-drownings in which the swimmers did not hyperventilate before breath-hold diving have come to our attention. These individuals had engaged in prolonged exercise prior to breath-hold di...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-004-1242-y
更新日期：2005-03-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2137-3
更新日期：2012-05-01 00:00:00
abstract：:In this study, the effect of a simulated dive on rat brain was investigated using several magnetic resonance imaging (MRI)-methods and immunohistochemistry. Rats were randomly assigned to a dive- or a control group. The dive group was exposed to a simulated air dive to 600 kPa for 45 min. Pulmonary artery was monitore...
journal_title：European journal of applied physiology
pub_type： 杂志文章
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更新日期：2013-06-01 00:00:00
abstract：:The objective of this study was to verify the following hypothesis: the pedal rate that minimizes root mean square (RMS) slope and the slow component amplitude of oxygen consumption could be close to the freely chosen pedal rate (FCPR) used by well-trained cyclists. Nine male competitive cyclists performed a 21 min su...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-008-0688-8
更新日期：2008-05-01 00:00:00
abstract：:The purpose of this study was to determine for the first time by repeated non-invasive 13C-NMR spectrometry whether blood lactate concentration affects glycogen reduction in non-exercising muscle during prolonged (6 h) physical exercise in healthy adult males. Such an effect would indirectly show that glycogenolysis i...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
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更新日期：2004-08-01 00:00:00
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journal_title：European journal of applied physiology
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更新日期：2016-06-01 00:00:00
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journal_title：European journal of applied physiology
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更新日期：2004-01-01 00:00:00
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journal_title：European journal of applied physiology
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更新日期：2012-05-01 00:00:00
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journal_title：European journal of applied physiology
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更新日期：2012-05-01 00:00:00
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journal_title：European journal of applied physiology
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更新日期：2010-07-01 00:00:00
abstract：:Branched chain amino acids (BCAA), particularly leucine, have been suggested to be ergogenic for both endurance and strength/power performance. This study investigated the effects of dietary leucine supplementation on the exercise performance of outrigger canoeists. Thirteen (ten female, three male) competitive outrig...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
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更新日期：2006-08-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
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更新日期：2012-04-01 00:00:00
abstract：:Energy system contribution during cross-country (XC) skiing races is dependent on several factors, including the race duration, track profile, and sub-techniques applied, and their subsequent effects on the use of the upper and lower body. This review provides a scientific synopsis of the interactions of energy system...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
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更新日期：2011-08-01 00:00:00
abstract：:Sixteen male students exercised for 14 days (1 h/day) in the heat for heat acclimation (HA). During deacclimation (DA) one group exercised in the cold (EXG, n=8) for 60 min/day (morning) and was exposed to the cold for another hour (afternoon) for 14 days. The other group was exposed to the cold (EPG, n=8) for 1 h eac...
journal_title：European journal of applied physiology
pub_type： 杂志文章
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更新日期：2005-10-01 00:00:00
abstract：: ...
journal_title：European journal of applied physiology
pub_type： 评论,信件
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更新日期：2018-12-01 00:00:00
