Cited by 94Thermoregulation and physiological responsesTextile materials and evaluationsOccupational Health and Performance

Comparison of two cool vests on heat-strain reduction while wearing a firefighting ensemble

Bennett, B. L., Hagan, R. D., Huey, K. A., Minson, C., Cain, D.·1995·European Journal of Applied Physiology and Occupational Physiology

Abstract

This study evaluated the effectiveness of a six-pack versus a four-pack cool vest in reducing heat strain in men dressed in firefighting ensemble, while resting and exercising in a warm/humid environment [34.4 degrees C (day bulb), 28.9 degrees C (wet bulb)]. Male volunteers (n = 12) were monitored for rectal temperature (Tre), mean skin temperature (Tsk), heart rate, and energy expenditure during three test trials: control (no cool vest), four-pack vest, and six-pack vest. The cool vests were worn under the firefighting ensemble and over Navy dungarees. The protocol consisted of two cycles of 30 min seated rest and 30 min walking on a motorized treadmill (1.12 m.s-1, 0% grade). Tolerance time for the control trial (93 min) was significantly less than both vest trials (120 min). Throughout heat exposure, energy expenditure varied during rest and exercise, but no differences existed among all trials (P > 0.05). During the first 60 min of heat exposure, physiological responses were similar for the four-pack and six-pack vests. However, during the second 60 min of heat exposure the six-pack vest had a greater impact on reducing heat strain than the four-pack vest. Peak Tre and Tsk at the end of heat exposure for 6-pack vest [mean (SD) 38.0(0.3) degrees C and 36.8(0.7) degrees C] were significantly lower compared to four-pack [38.6(0.4) degrees C and 38.1(0.5) degrees C] and controls [38.9(0.5) degrees C and 38.4(0.5) degrees C].(ABSTRACT TRUNCATED AT 250 WORDS)

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Crossref · 10.1007/bf00865029

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  • A number of studies on personal cooling using PCMs showed its effectiveness in alleviating heat strain in occupational settings.

    “A number of studies on personal cooling using PCMs showed its effectiveness in alleviating heat strain in occupational settings (Bennett et al. 1995; Choi et al. 2008; Chou et al. 2008; Reinertsen et al. 2008; Gao et al. 2011a), and during and after sports and exercises (Webster et al. 2005; House et al. 2013; Zhao et al. 2015a).”

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Authors
Bennett, B. L., Hagan, R. D., Huey, K. A., Minson, C., & Cain, D.
Affiliations
  • Naval Health Research Center (US)
  • San Diego State University (US)
Venue
European Journal of Applied Physiology and Occupational Physiology
Published
1995
Volume
70
Issue
4
Pages
322-328
ISSN
  • 0020-9376 (ISSN-L)
  • 0301-5548
  • 1439-6327
OpenAlex
W2084287646
Cited by
94
References
22
Citations by year
2025: 3 · 2024: 4 · 2023: 3 · 2022: 3 · 2021: 6 · 2020: 8 · 2019: 3 · 2018: 2 · 2017: 7 · 2016: 7 · 2015: 5 · 2014: 7 · 2013: 3 · 2012: 4
FWCI
0.00
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Navy
  • Office of Naval Research
  • U.S. Army Medical Research and Development Command
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Physical Sciences › Materials Science › Polymers and Plastics › Textile materials and evaluations
  • Health Sciences › Health Professions › Occupational Therapy › Occupational Health and Performance
Keywords
heat strain, heat stress, rectal temperature, skin temperature, energy expenditure, heat tolerance, humid air, cooling garments, firefighters
MeSH terms
Adult, Body Temperature, Electrocardiography, Energy Metabolism, Evaluation Studies as Topic, Fires, Heart Rate, Hot Temperature, Humans, Humidity, Male, Protective Clothing, Stress, Physiological, Sweating, Exercise

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