Microclimate Cooling Effect on Perceived Exertion in Four Heat/Exercise Scenarios

Abstract

Operation Desert Storm demonstrated a need for individual microclimate cooling during strenuous activity. Evaluation of a cooling system should not only consider physiological functions but subjective measures of comfort, such as ratings of perceived exertion (RPE). The objectives of this study were evaluate a cooling suit's effect on: (a) subjective RPE, (b) heart rate (HR), and (c) the magnitude of the correlation between RPE and HR. Thirty- one U.S. Marine Corps subjects, wearing chemical defense ensemble, were tested in four separate scenarios of heat/exercise combinations during both cooling suit and control sessions. Results of repeated measures multivariate analysis of variance showed that RPE was significantly lowered by wearing a cooling suit during only the most strenuous of the four scenarios. A decrease in the magnitude of the correlation between RPE and HR during all four cooling suit sessions indicated that a microclimate cooling suit interfered with perception of exertion.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1994
Accession Number
ADA285549

Entities

People

  • Christopher S. Parrish
  • Daniel W. Trone
  • Elmer J. Labranch
  • Ralph G. Burr
  • Robert S. Pozos

Organizations

  • Naval Health Research Center

Tags

Communities of Interest

  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Aerospace Medicine
  • Analysis Of Variance
  • Cardiovascular Physiological Phenomena
  • Cooling
  • Data Science
  • Environment
  • Heart Rate
  • Information Science
  • Marine Corps
  • Military Personnel
  • Motor Skills
  • Multivariate Analysis
  • Perception
  • Physiology
  • Research Facilities
  • Statistical Analysis
  • Test And Evaluation

Readers

  • Circadian Sleep-Wake Regulation and Chronobiology
  • Combustion and Flow Dynamics.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.